Since the '90s · Evidence-graded
The science of growing younger.
Hair, peptides and longevity medicine, ranked by the evidence.
The Regrowth Assessment · 3 minutes
Get a protocol path built around you.
Age, goals, Norwood or Ludwig stage, current meds and recent labs — we map it to the programs and research that fit.
Start the assessment- 01About you
- 02Goals
- 03Hair status
- 04Meds & labs
- 05Your protocol path
Programs
Four paths, clinician-guided.
Vetted telehealth programs for the outcomes people ask us about most.
Hair Regrowth
Finasteride, oral & topical minoxidil, combination formulas — prescribed online.
Compare 02Metabolic / GLP-1
Semaglutide and tirzepatide programs with clinician monitoring and labs.
Compare 03Healthy Aging
Physician-guided rapamycin, metformin and longevity diagnostics.
Compare 04Hormone Optimization
TRT and hormone panels with ongoing dose management.
CompareKnow your numbers
You can't regrow what you don't measure.
Biological age, ApoB, HbA1c, hormones. Our testing partner Rythm Health offers an at-home monthly blood test so you can watch the trend — not a single snapshot.
Sample panel
Illustrative values only.
Latest research
The Regrowth Briefing
Ozempic Hair Loss: Why It Happens, How Long It Lasts and What Helps
Why Ozempic and other GLP-1 drugs can trigger hair shedding, how long it lasts and what helps your hair recover, from a 30-year hair loss expert.
7 min read · Scott Blaine Hoffman
Exosomes for Hair Loss: Promising Science, Unproven Treatment
Exosomes are the newest "regenerative" treatment being sold to people losing their hair, often at prices that rival a small hair transplant. The pitch sounds scientific, the before-and-after photos look good, and the clinics offering it are often polished. But the evidence, and the legal status, are not what the market
4 min read · Scott Blaine Hoffman
Topical Finasteride: Approval Status, Results and Real Risks
Topical finasteride is one of the most requested treatments in hair loss right now, mostly from men who want finasteride's benefits with less risk of its side effects. The idea is simple: put the drug where the problem is, on the scalp, instead of swallowing it. The reality depends a lot on where you live and what you'
3 min read · Scott Blaine Hoffman
The founder
Thirty years on the front line of hair loss.
30+
years in hair loss
50k+
network members
1990s
Regrowth.com founded
Scott Blaine Hoffman
Founder, Regrowth.com
Scott Blaine Hoffman founded the original Regrowth.com hair-loss network in the early days of the internet — a newsgroup that grew to more than 50,000 patients, physicians, dermatologists and trichologists comparing notes honestly.
He went on to found Regenepure, and has spent three decades separating what works from what's marketed. Regrowth now applies that same rigor to peptides and longevity medicine.
Read the full storyWeekly · Evidence-graded
The Regrowth Briefing
New studies on hair, peptides and longevity drugs — graded, translated into plain English, and delivered once a week.