Laser Blood Irradiation

Pay particular attention to the fact that it "normalizes" hormone and immune system and reduces inflammation

There are also other articles about laser blood irradiation just do a google search.

"the improvement of rheological characteristics of the blood and microcirculation, normalization of parameters of hormonal, immune, reproductive and many other systems.

After blood irradiation the decrease of concentration of cholesterol, triglycerides, lipoproteins and glucose was also detected in patients with originally increased values. No signs for blood cell damage was obtained. The blue light blood irradiation therapy helped to keep the level of atherogenic lipids in the blood of patients with atherosclerosis relatively low for several months.

Activation of microcirculation is one of the most pronounced effects of IV LBI. The improvement of microcirculation after IV LBI was detected in all structures of the central nervous system.

It can improve the blood microcirculation, increase nutrients and oxygen supply to different tissues.

positive influence of the activity of immune system was found. All the above mentioned results was detected after a single procedure of blood irradiation, and repeating treatments made results of therapy stronger.

The decrease of low-density lipoproteins and cholesterol amount in the blood serum was detected.

It was proposed, that increasing levels of NO [nitric oxide]can be results of light irradiation of blue and red band."

http://www.emred.fi/htmls_en/laser_blood_irradiation_therapy_en.html#TLBI

"used for its biostimulative, analgetic, antiallergic, immunocorrective, antitoxic, vasodilative, antiarrhythmic, antibacterial, antihypoxic, spasmolytic, anti-inflammatory and some other properties

activates nonspecific mechanisms of anti-infectious immunity. Intensifying of bactericidal activity of serum of the blood and system of the complement, reduction of the degree of C - reactive protein, level of average molecules and toxicity of plasma, increasing the content of IgA, IgM and IgG in the serum of the blood, as well as decreasing of the level of circulating immune complexes are proved.

improving the rheological properties of blood, rising fluidity and activating transport functions. That is accompanied by increasing the oxygen level, as well as decreasing the carbon dioxide partial pressure.

It was proved that IV LBI reduces aggregation ability of thrombocytes, activates fibrinolysis, which results in peripheral blood flow velocity increasing and tissues oxygenation enriching. The improvement of microcirculation and utilisation of oxygen in tissues as a result of IV LBI is intimately linked with positive influence on metabolism: higher level of oxidation of energy-carrying molecules of glucose, pyruvate, and other substances.

unblocking of capillaries

positive influence practically on all tissues and functional systems of the body"

http://www.laserpartner.org/lasp/web/en/2003/0058.htm

"As shown in physiological and physiochemical tests, this laser irradiation technology can rapidly alter the flow conditions of blood and oxygen in the body. From increased micro-circulation, strengthened blood cells, increased cell metabolisms, increased immune system functions, and faster tissue regeneration this technology is very beneficial to the total functional parameters of the human body."

http://www.chinatech.com/irradiation.htm

more info thanks to hapyman

Some info from http://www.wanliyiliao.gz.cn/product.asp

Cardio-cerebral vascular disease laser therapeutic apparatus

Treatment principle

For the low budget "tanning bed" you can lay in the sun with a UV filter between you and the sun. I think that was done 100 years ago and supposedly it did work to improve your overall health.

Am I the only one that has done this?

I'd be curious if anyone feels that it helps them.

For my experience, I've been using a 40 mw 650 nm laser briefly and I'll get real thirsty and I'll get goose bumps throughout my body shortly after.

Yeah, you gotta be the only one doing this, at least on this forum.

1. How long are you holding the laser and where on the body.

2. Post a picture of the unit you are using or/and where you got it from.

3 Are you placing it on a particular acupressure point ?

Thank you

I've been using a 40 mw 650 nm Aixiz laser that I bought off of Ebay. They don't sell that model anymore. However, you can buy other wavelengths. Here's a good quote "Currently semiconductor laser diodes with red (630-670 nm) or near infrared (800-1300 nm) light emission are used to perform TLBI therapy." http://www.emred.fi/htmls_en/laser_blood_irradiation_therapy_en.html#TLBI

Here's another good quote ... remember 1 mw is about the standard that's used for IV laser blood irradiation "It is supposed, that the efficacy of 20 mW HeNe laser transcutaneous blood irradiation is equal to 1 mW HeNe laser intravenous blood irradiation" http://www.laserpartner.org/lasp/web/en/2003/0058.htm

So this means 20 mw is about the perfect strength if you buy a 632 nm laser.

Also, I'm holding the laser there for about 5 minutes. "Sometimes" I'll push the laser deep into my belly button because it will increase the depth of penetration so it can get further into the artery behind my belly button. I can tell that pushing the laser into my belly button makes a huge difference in something happening. I'll get a lot more goose bumps and I'll be a lot more thirsty.

So again, it's not used in an acupressure point but is placed over an artery ... probably best in your belly button.

Also, I should say I'm sure that this would also work but maybe to a more limited success if a red laser is pressed very hard into your belly button. The reason why very hard is because it will increase depth of penetration to be able to get to your artery behind the belly button and that artery is a main one as I believe the blood that flows through that will move blood throughout your whole body in 20 minutes.

Here's a pretty good study if you'd like more info

http://www.egla.de/downloads/DZALaserbloodirradiation.pdf

You can also google laser blood irradiation for more info. And while IV laser blood irradiation will work better that placing lasers over your belly button, it will still work, it's just the trick is you need the lasers strong enough to get to the artery, or you need to push a laser hard into the belly button to increase depth of penetration.

I should say I'm sure a 5 mw 650 nm laser will work too but you'll probably need to push the laser hard into your belly button.

Here's a pic of the laser that I'm using. It's off of aixiz site at mfgcn.com

"Under laser blood irradiation anti-inflammatory effects were observed that improved the immunologic activity of the blood"

http://www.egla.de/downloads/DZALaserbloodirradiation.pdf

"C-reactive protein measures general levels of inflammation in your body."

http://www.revolutionhealth.com/articles/c-reactive-protein-crp/tu6309?ipc=B00232

"reduction of the degree of C - reactive protein [due to laser blood irradiation]"

http://www.lasercliniclondon.com/phdi/p1.nsf/supppages/2522?opendocument&part=5

"High CRP levels are related to inflammation, and chronic inflammation is associated with insulin resistance, hypertension, type 2 diabetes, atherosclerosis, and more recently hair loss."

http://news.hairlosshelp.com/hair-loss-news/research-shows-how-your-diet-can-affect-your-hair-loss/

where could we get the appropriate laser for this ?

how does your wife use the lasers on her face? did you create some sort of device or mask or does she just hold it around her face

JDP,

Do you get an increased sensation to urinate along with the thirst?

Have lasers ever been used for varicose veins. They're the result of poor blood flow....about 15% of men have a varicocele, i wonder if this would help with that. Not to put the laser on your balls, well i wouldn't be the first...but the veins run all the way up your stomach.

http://stores.ebay.com/AixiZ-Service-and-International-LLC

mfgcn.com is also there store on the internet as well as

As for why do the belly button I have no medical degree or anything so I'm clueless which places are better but I was just following what has been posted on the internet through studies and articles. Most of the places recommend through the belly button. Here's one good quote why and they all pretty much state this, FWIW

“You can even get light into the blood stream. One of the best ways is through your belly button, because the aorta artery is behind the belly button. So if you insert the light there for 20 minutes, every drop of blood in the body will pass in front of the light,"

http://209.85.173.132/search?q=cache:w-lFUhDIwSIJ:www.naturalawakenings.com/natural_health/natural_health_tips_23.htm+laser+blood+irradiation+belly+button&hl=en&ct=clnk&cd=7&gl=us&ie=UTF-8

another quote from another site

"Likewise, irradiating the belly button will treat the entire bodily blood supply in 20 minutes, the aorta passing just behind it" http://pdtlights.com/

It has been mentioned that you can put the laser light on a large vein but I believe you get better results when placed on an artery. I could have sworn that the best artery was behind belly button because this artery was closest to the skin. I could be wrong though because it's been since Oct. when I researched the places to put it. But I will say that a lot of the articles on this say to do it in belly button. Also, pressing the laser into the belly button just = higher depth of penetration but I only occasionally do this.

laser safety goggles = http://cgi.ebay.com/Protection-Safety-Glasses-Goggles-for-650nm-Red-Laser_W0QQitemZ220345022444QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item220345022444&_trksid=p3286.c0.m14&_trkparms=72%3A1205%7C66%3A2%7C65%3A12%7C39%3A1%7C240%3A1318%7C301%3A0%7C293%3A1%7C294%3A50

I have these myself and I'm happy with them.

whovian,

Yes, I do have a need to urinate after laser blood irradiation. And again, what's also noticeable is I'll be "VERY' thirsty. I'll need to drink at least a glass of water after. I'll also get a little weird feeling behind my belly button. My eyes will also be very white with less veins ... kinda like I put visine in my eyes but that could be my imagination Again, I don't know how well this works because I'm already in phenomenal health and I've already cured my hair loss. But I will say that something is happening.

cazman,

I'm sure that it would help.

A bit off topic but I thought it's interesting but there have been studies using IR lasers on penis or scrotum for ED and fertility issues with positive results.

i only see 10mW 635nM lasers on the ebay page. no 20mW

I thought you meant that you couldn't find "any" lasers on ebay from aixiz. I was just pointing out there webpage.

Anyway, you don't need exactly 20 mw lasers to get the job done. In fact, I wouldn't be surprised if it wouldn't work with 5 mw lasers pushed in your belly button if you have some spare lasers.

So again, 20 mw is just a "very rough" guide of how powerful the lasers are in laser blood irradiation.

You can also buy some lasers through another company as well ... maybe ebay.

sorry for the confusion again

I am very interested in this laser blood irradiation idea it is an entirely different ball game than using LLLT for hair or facials. What is the protocol in terms of time/joules? What are the consequences of over-exposure? It seems like there is an enormous amount to be gained from tapping into this type of therapy. On the other hand it seems like there are so many ways that things could go wrong if you made mistakes in applying it.

can we get a pic of the facial treatment...contraption?

That's actually one of the areas that I'm not sure of ... irradiation time. I know when they hook you up to an IV and do this it's between 20 - 60 minutes. And that a 20 mw laser is "about" the equivalent of the 1 - 3 mw lasers used in IV treatment so does this mean we should use a 20 mw laser for 20 - 60 minutes? Not necessarily. The reason why I say is because I personally don't like to go over 8 - 10 joules on "healthy" skin such as your belly button. A 20 mw laser "I'm guessing" would give 5 joules in 5 minutes.

With my 40 mw laser being used for 5 minutes my guess is I'm getting 10 joules, which really is the most I would want to do on healthy tissue. Not to mention anything beyond this I would get a pretty weird sensation behind my belly button if I excede this and I would get extremely thirsty.

However, I really can't see any kind of problems from doing this in this short of a period of time.

Of course someone can always do this with less joules if they are worried as they will still get results. I could be wrong but I believe it was mentioned that laser blood irradiation is beneficial for 1 month after treatment. Something like that. So there really isn't much of a need to get high joules when doing this. Just get lower joules more often if you're worried about ill effects of too many joules.

I've also been irradiating my blood through my belly button since September with no ill effects.

Anyway, the bottom line is that treatment time really is the great unknown. As for any other issues I really can't see anything else. I believe it's been mentioned that antibiotics work more effectively. If antibiotics work more effectively it's possible that vitamin supplements and prescription pills may also work more effectively as well so you may need to scale back the dosage a touch but that's all in theory though.

Just to recap though, there are a lot of articles and information about this online. I would recommend everyone to do a google search for more information about this. And I'm also sure a spare 5 mw laser or a couple spare 5 mw lasers might work too.

I hope this makes sense as I'm ready to go to bed, lol

When treating through the skin you probably want to be careful about how many joules you are exposing that area of skin and underlying tissue to. Maybe we can increase the time by changing locations. Say 5 minutes belly button and 5 minutes on another major artery.

The next biggest would be in your legs and then maybe your arms. However more skin is covering these areas so maybe the neck would be a decent place to try. Also the brachial artery on some people might be easy enough to reach.

"In addition to the invasive method of intravenous laser blood irradiation (IV LBI) non-invasive transcutaneous laser blood irradiation (TLBI) is also available.

This non-invasive and relatively simple method of blood irradiation has been taken into use only after development of bright enough red and infrared lasers. It was shown that infrared radiation can go deep enough to reach vessels and irradiate blood. In addition, red laser light can also influence blood in superficial veins. Currently semiconductor laser diodes with red (630-670 nm) or near infrared (800-1300 nm) light emission are used to perform TLBI therapy.

Recent studies suggested that the medical effects of HeNe laser TLBI are similar or very close to the effects of HeNe laser IV LBI. It is believed, that the treatment results of 20 mW HeNe laser transcutaneous blood irradiation are similar to 1 mW HeNe laser intravenous blood irradiation. Laser light is delivered to the skin in the area of a large vein or artery through a special light-guide. Contact of the light-guide with the skin with some pressure can increase penetration of the light.

The biggest advantage of TLBI is that this method of blood irradiation is painless. Another important issue is that the need for intravenous injection is completely eliminated. This is why TLBI has the greatest advantage for the treatment of children. It can be also applied for the treatment of patients with small or difficult to find deep veins.

Unfortunately, not enough research exists to date directly comparing medical and biological effects of IV and transcutaneous LBI with each other. G. Brill (1994) suggested that the effects of the laser therapy depend on the method of irradiation. He considered, that the term «transcutaneous laser blood irradiation» is not quite correct, because it mentions only irradiation of blood and hides the irradiation of other nearby tissues, including all layers of skin, possibly acupuncture points, nerves, lymphatic glands and vessel, and even muscle and bone tissues. In case of IV LBI the main portion of the laser light is absorbed by blood, while in case of TLBI only minor part can reach blood. So, it is better not only to mention TLBI, but also to specify the exact area of irradiation."

Brachial Arter

www.emred.fi/htmls_en/light-guides_for_elaps_therapy_system_en.html

That would also be a good idea to do a little bit on one artery and a little bit on another artery, etc.. That way you don't get too many joules in one area of your skin

The only thing I'd like to add is to be careful of laser light around your thyroid. Many LED companies recommend not to get LED light around the thyroid as it will affect it.

Evaluation of Low Intensity Laser Effects on the Thyroid Gland of Male Mice

Objective: The purpose of this study was to assess whether there were alterations in the thyroid hormone plasma levels under infrared laser irradiation, in the thyroid gland region. Background Data: Studies have demonstrated that infrared laser can cause alterations in thyroid glands. Methods: Sixty-five albino male mice were used and assigned to five groups (n = 13), with differences in the times that they were sacrificed. Irradiation procedures consisted of an infrared diode laser emitting at 780 nm, at 4 J/cm2 energy density, in contact mode, point manner. Blood was collected before irradiation (group 1), and then at 24 h (group 2), 48 h (group 3) and 72 h (group 4), and 1 week (group 5) after the third irradiation. The collected material was used for clinical analysis to evaluate the T3 (triiodothyronine) and T4 (thyroxin) hormones. Five animals were used for light microscopy analysis. Results: A statistically significant hormonal level alteration between the first day and 7 days after the last irradiation was found. Conclusions: It was concluded that low-level laser therapy (LLLT) of the thyroid gland may affect the level of thyroidal hormones.

Contradictions

One of the unique features of LLLT is that there are very few true contraindications. This means that the therapy can be used in a wide variety of applications and conditions.

1. THYROID GLAND – While research results have been at odds, the current consensus is to avoid LLLT irradiation over the area of the thyroid gland.

2. PREGNANCY – Prudent medical care dictates that LLLT not be performed over the uterus of a known pregnant woman.

3. KNOWN CANCER TUMOR – Although the research is again at odds in this case, the recommendation is to not irradiate over or near a known primary or secondary carcinoma lesion or tumor.

4. RADIATION THERAPY PATIENT – Because LLLT has been documented to have an effect on the human immune system, in patients taking immunosuppressant medications, LLLT is not recommended at this time. Several studies have demonstrated positive effects of LLLT in counteracting radiation therapy nausea; however, more research is needed.

5. TREATMENT OF OVERSYMPATHETIC GANGLIA –The vagus nerves and cardiac regions of patients with known heart disease are not recommended for LLLT.

- ALLEGED CONTRAINDICATIONS -

1. PACEMAKERS – While some have suggested caution in using LLLT in the presence of pacemakers, no evidence has been presented. Because LLLT uses light, no influence on the pacemaker results from its use.

2. EPILEPSY – Pulsed visible light can have an effect on certain individuals susceptible to this condition, however, invisible, non-pulsed laser light (as is provided by the ML-830) has had no reported detrimental effect on seizure-susceptible patients.

3. DIABETICS – While this has been suggested as a contraindication, no evidence has been found to show that LLLT could aggravate symptoms. In fact several studies have shown dramatic improvement in healing of wounds of diabetics with LLLT.

4. CHILDREN – The concerns originally expressed for use of LLLT near growth plates in children have been found to be unwarranted. No detrimental bone growth effect has been documented, and in fact, LLLT in children has been found to be beneficial in pediatric fractures.

- GENERAL PRECAUTIONS -

Because the ML-830 laser emits invisible infrared light, use of it in the area of the face and around the eyes must proceed with appropriate care and caution. Invisible infrared laser light penetrating the eye may cause serious harm after extended exposure. Therefore, the use of the provided protective glasses for the patient and clinician i

for example, you mentioned using the 5W lasers. what nm and how many should we use? 4 of them?

I would think that the upper inside of the arm (brachial artery) or the crease in the leg (superficial femoral artery) would be good choices. You can easily palpate these by applying firm pressurewith your inner three fingertips.

iwantlaserhair,

I looked for a laser for you and I personally would buy this laser and power supply if you don't have any spare lasers hanging around.

It's a 20 mw 675 nm laser for $28.

http://www.aixiz.com/shop/product_info.php?products_id=105

For an adapter you can use this

http://www.aixiz.com/shop/product_info.php?products_id=40

So for 38+ shipping this would be awesome.

http://www.aixiz.com/shop/product_info.php?products_id=44

or a 35 mw 980nm but the mw may be a bit on the high side. However, moving the laser away from your skin a couple inches will give less mw. Just be careful you don't shine this in your eye as it'll take away your vision so I'd highly recommend safety glasses with this since it's invisible.

http://www.aixiz.com/shop/product_info.php?cPath=1_29&products_id=99

Then just use the same adapter that I linked to on my last post

I do believe a 675 nm laser will work just as well as that article I quoted earlier. Here's the article if you're curious http://www.emred.fi/htmls_en/laser_blood_irradiation_therapy_en.html#TLBI

You see, the exact nm hasn't been determined one bit. Not to mention based on the nm that LLLT uses it actually should be extended to 680 nm. And again, that's all that article really was quoting, was just a range of what is commonly used in LLLT.

What I'd be more concerned about though is weather you want a red laser or an infrared laser. An infrared laser will penetrate further and "may" have a higher percentage of blood that is irradiated. I wouldn't go above roughly 900 nm though as that becomes a bit too deep IMO.

With that said, I've been using a 40 mw 650 nm laser over IR for laser blood irradiation and I do feel something is happening. I just don't know if IR is better.

hope this helps

the lasers would be farther away, but there are a lot of them

would a 650 nm be more desirable than a 675nm?

But beyond this, nobody really knows as there aren't any studies comparing the two so we can only assume 675 nm is better because of depth of penetration.

My only advice is to follow your wallet. If the 650 nm laser is cheaper than the 675 nm laser, then I'd pick the 650 nm laser.

does this mean that you can wear the goggles and then shine the laser right at your eye and you will be safe?

First off let me explain that blue laser light is NOT used for transcutaneous laser blood irradiation. Transcutaneous laser blood irradiation is just a fancy word for exposing your blood to laser light externally (e.g. via belly button).

Why is it not used transcutaneously? Because it doesn't have the depth of penetration and therefore won't work. Red on the other hand can penetrate much deeper in your body and Infrared will penetrate much deeper than red. However, this does not mean infrared is better than red either.

So again, the articles you are reading about laser blood irradiation using blue lasers are talking about "IV" laser blood irradiation and NOT transcutaneous laser blood irradiation. Blue laser light will not work in our application.

BTW, blue lasers start at $1,000 at aixiz site, lol http://mfgcn.com/_wsn/page4.html

As for your question about 675 nm laser not being used I beg to differ. 675 nm laser light does work. The author is only giving a very brief range of wavelengths that are commonly used in LLLT under various ailments that would provide the depth of penetration Everything isn't as black and white in the field of LLLT to say that 5 nm will not produce results in our application. I tried explaining this a couple posts earlier.

Is your 40 mw laser for irradiation focused or unfocused (cap off)?

Is your 40 mw laser for irradiation focused or unfocused (cap off)?

Is your 40 mw laser for irradiation focused or unfocused (cap off)?

The laser still has the lens cap on but the laser is unfocused as much as possible.

anyone see this? laser irradiation through the nose to get to the blood. dogface

Anyway, it's extremely safe in the nose and no light will get to your eyes.

hopefuly nobody here is suffering form piles.

There are a bunch of studies doing this for tinnutis (ringing in the ears) with a good percentage getting relief.

Here's some information. Also, check out the last link as they show a picture where they are using a laser directly behind the ear. I'm sure it's IR light though as only IR light can penetrate bone.

------------------------------------------------------------

"The low level laser therapy of inner ear dysfunction has been made use of in Germany since the end of the eighties As the observation of healing processes has shown in the course of the years, even serious impairments such as the most excruciating cases of tinnitus, hearing loss, hyperacusis, vertigo and Meniere's Disease can be considerably alleviated and even healed with the aid of modern Low Level Laser Therapy (LLLT).

The laser emits 830 nm (480 mW) and 630 nm (20 mW) simultaneously."

http://www.drz.org/asp/conditions/tinnitus2.asp

"After three years of clinical monitoring 200 patients after Comprehensive Laser Therapy (medication, rehab physiotherapy aimed at axial skeleton and LLLT) of tinnitus have been evaluated with the following results: 16 per cent of patients with no effect (however, approximately one third of this group may have finished attendance due to other reasons than in direct relation to the results of therapy, attendance finished sua sponte by the patient), 15 per cent of patients marking their relief of tinnitus as less than 50 per cent alleviation (evaluation through combination of three different scales), having in mind especially the criterion of "quality of life", 43 per cent of patients, the biggest group consisting of patients evaluating their relief of tinnitus within mentioned scales as more than 50 per cent, 26 per cent of patients are totally free of tinnitus. "

http://www.rj-laser.com/english/src_tinnitus.htm

"I've used a 40 mw 650 nm laser directly in my ear for minutes at a time"

All right, who wants to guess where else jdp's sticking these things?

No it's not.

I have 2 lasers. One laser is adjustable from 10 mw - 40 mw 650 nm laser. I got this laser from Aixiz off there Ebay page, but it appears they no longer sell this model as I haven't seen it for about 6 months.

The other laser I have is a 150 mw 808 nm

Nobody has a clue, lol. I personally wouldn't do this more than every 2 or 3 days though.

Also, I've been doing this occasionally since October and I can't tell a difference. I'm already healthy so maybe that's why.

In short, I wouldn't rely on laser blood irradiation to do anything for MPB but you never know. There is a lot of good results that comes from laser blood irradiation (on paper) so it's always worth a try if you haven't been able to get your hair loss under control.

So I'd rank laser blood irradiation as one of those cool things to try but don't expect any results.

hope that makes sense.

So, that's fine. You basically answered my question. Thanks, jdp!

make sure you push the laser into your skin as that will push the blood away from your tissue and thus increase depth of penetration to hopefully get to your artery. That's what's recommended

you said you were a very thin guy, right? i do have a lil belly fat. perhaps thats whats messing things up?

anyone else feel anything aside from jdp?

It looks like Aixiz got a new shipment of lasers recently. They also just got my 650 nm 40 mw laser in as well. Here's the link to the laser that I own.

http://www.aixiz.com/shop/product_info.php?cPath=1_26&products_id=130

That laser is real pricey and if I had to do it over again, I'd pick another laser and just buy an adapter to go with it. I'd probably buy the 675 nm 35 mw + adapter as it would only cost $38 total.

http://www.aixiz.com/shop/product_info.php?cPath=1_35&products_id=105

And my second choice would be this 660 nm laser which would come out to $60.

http://www.aixiz.com/shop/product_info.php?products_id=127&osCsid=9e0d86bae5d5397d0094f50200512e20

Here's the link for the adapter

http://www.aixiz.com/shop/product_info.php?products_id=40

You could also try and experiment with this 780 nm 25 mw laser as it's only $8

http://www.aixiz.com/shop/product_info.php?cPath=1_27&products_id=67

One last thing I wanted to mention was that you may also want to experiment with a couple spare 650 nm 5 mw lasers if you have any... especially if money is tight.

hope this helps

Supposedly that laser is adjustable from 10 - 40 mw and it definitely has an adjustable focusing lens.

The reason why I say supposedly that it's adjustable from 10 - 40 mw is because my laser doesn't appear to be adjustable in mw. I'm not sure exactly why, but when I turn the knob it doesn't appear to be any more brighter or dimmer. Also, for some reason when I tested the laser with my laser tester, it always read over 30 mw and never would go below that number ... my laser tester doesn't go above 30 mw.

As for how they are able to accomplish this, my guess is that that laser is using an ACC circuit board instead of the APC circuit board that our 5 mw 650 nm lasers come with.

But yeah, the focusing lens doesn't really change the mw ouptut of the laser. It only changes it from a pin point dot to a wide beam. Changing the laser to a wide beam will lower the mw because it's spreading the light output to a larger area. But when Aixiz is saying that it's adjustable from 10 - 40 mw that's not what they are talking about. I hope that makes sense.

But to answer your question I believe they are able to change the mw power because it's using an ACC circuit board. From my understanding to change the mw of the laser, you have to change the voltage. I could be wrong, but that's my understanding.

Also, keep in mind that the power output of an unfocused laser is greatly dependent on distance. Moving the laser away just by 1 inch will \greatly diminish the power of the laser. What I'm trying to say is if you're worried that 40 mw is too much, you can move the laser 1" away and the output would be "roughly" 25 mw. I don't know the exact number right now, but that's my guess.

With all that said, I do believe spending $60 is pretty expensive for laser blood irradiation. I'd personally vote for the 675 nm laser and "maybe" also that $8 IR laser to try out as well. Also, don't forget the 675 nm laser will penetrate a little deeper in your skin than a 650 nm laser which is always a good thing with laser blood irradiation. I'm not sure by how much more it would penetrate though. And again, you can always try a left over 5 mw laser and see if you notice anything.

Here's some information about ACC vs APC boards if you're curious

If you have any more questions feel free to ask me.

-------------------------------------------------------------------------

"Drive circuits for laser diodes are either automatic power control (APC) circuits that maintain a constant light output power or automatic current control (ACC) circuits that maintain a constant current.

The output power and wavelength of the laser diode can be affected by the changing of temperature. APC circuits provide a constant light output power despite variations in ambient temperature. If you have a DC power supply which provides you an accurate and stable DC voltage. You may use this APC circuit board without voltage regulator.

APC with voltage regulator circuit enhances the function of APC circuit. It provides constant output power when the input voltage is between 2.8V DC and 6V DC.

Even with constant current drive, the output power of laser diodes varies with ambient temperature. However, a slight change of output power during operation is acceptable for many applications such as laser pointer and laser sight. In addition, battery is the most popular power source for laser diode module. In this case, the output power of laser will go down caused by the battery voltage decreased. The ACC circuit will provide the laser diode with constant current and stable output power."

http://www.lasermate.com/driver.htm

Yup, you're fine with the 2.5 amp adapter powering a single 20 mw laser.

I actually use a 2.4 amp adapter to power 5 of our 30 ma lasers with no problems. I also use it for 1 30 ma laser, and seperately I've also used a 150 ma laser with no problems ... I use them for scars, moles, spider veins, etc.. But anyway, I've never had any problem using an oversized adapter to power a laser.

Thanks for taking the time to report back if you get results and good luck!

I ordered one of those 650nm 10-40mW units from Aixiz and just got it today.

But I have a question. I'm not good with wiring, current, and stuff like that, so how can I tell when I've got it adjusted to, say, 20mW? I know I turn the little screw on the power supply, but how do I know how much mW it's putting out?

Thanks in advance for any help.

I just made a post to Waalaa about that on 2/8. In short, I have a laser tester that I tested my laser with to see if I could the the mw setting. I'm not sure if my 40 mw laser is broken but for some reason I couldn't change the mw setting of the laser below 30 mw. My laser tester also only goes up to 30 mw so I have no idea if the laser is set at 30 mw or at 40 mw. My guess is it's set at 40 mw though.

Anyway, here's what you can do. I personally treat my laser as if it's set at 40 mw and if I went it set at 20 mw all you have to do is move the laser by I would guess 1 1/4 inches to get it around 20 mw. That's a very rough calculation with my laser tester but at least you'll have the general idea.

BTW, you can still use a 40 mw laser on your skin for laser blood irradiation. I just wouldn't keep the laser on your skin for more than 4 or 5 minutes every few days. I personally use that laser directly on my skin with no ill effects and if anything my hunch would be that it works better that way over holding it an inch away.

Also, the reason why that article stated to use a 20 mw laser is because they were only giving a very rough guide the wavelength and mw rating of the laser. But laser blood irradiation is so new all you can really do is experiment and go from there.

hope this helps