Regrowth Intelligence

The AI behind Regrowth.

Thirty years of hair-loss conversations, physician input and product research — turned into an AI that answers questions about hair, peptides and longevity medicine, and shows you how strong the evidence is.

About Regrowth Intelligence

How it answers

Evidence first, hype last.

Every drug, peptide and treatment on Regrowth carries an evidence grade from A (strong human data) to D (mostly animal or anecdotal). Regrowth Intelligence answers from those graded pages and says when the data is thin.

Graded sources

Answers lean on the site's drug, peptide and hair pages, each with its evidence grade and key studies.

Straight about limits

If human data doesn't exist, it says so — the same rule the original network's moderators used against product shills.

Points to a clinician

Education, not prescriptions. When a question needs a doctor, it routes you to one.

The Regrowth AI engines

One network, three specialists.

Here on regrowth.com

Regrowth Intelligence

The general engine. Ask about hair loss, peptides, longevity drugs and lab markers; answers point back to the evidence-graded pages on this site.

Ask now →

Physician AI

Hairloss.org

The clinical side: a hair-loss AI paired with a finder for transplant surgeons, dermatologists and trichologists.

Visit Hairloss.org →

At Regrowth Peptides

Peptide AI

Ask about a specific peptide, then move to clinician-approved programs filled through telehealth and licensed pharmacies.

Visit Peptide AI →

The network

The Regrowth family

Education and care sites, the product lines formulated from what the community asked for, and the domains held alongside them.

30+ yrs
focused on hair loss and regrowth
50,000+
subscribers to the original Regrowth.com newsgroup
11
sites and domains in the family

Education & care

  • regrowth.com

    The hub: hair, peptides and longevity medicine, ranked by the evidence.

    Operating
  • hairloss.org

    AI hair-loss portal with a specialist finder covering transplant surgeons, dermatologists and trichologists.

    Live
  • regrowthpeptides.com

    Ask Peptide AI about any peptide, with clinician-approved programs through telehealth and licensed pharmacies.

    Live
  • regrowthlasers.com

    Reviews and buying guides for low-level laser hair devices.

    In development

Products

  • regenepure.com

    Physician-recommended, DHT-fighting hair care without sulfates or parabens.

    Operating
  • minoxidilspray.com

    Fine-mist minoxidil, formulated for even coverage and absorption.

    Operating

Domains held

How Regrowth started

From a 1990s newsgroup to an AI.

By Scott Blaine Hoffman

Regrowth began as a place to talk honestly about something most people kept to themselves: losing their hair.

Scott Blaine Hoffman launched Regrowth.com before social media existed. Its moderated newsgroup grew past 50,000 subscribers, physicians, dermatologists and trichologists among them, and moderators routinely called out product shills.

Listening to that community shaped what came next. Members wanted ingredients they couldn't find in quality form, so Scott formulated them: ketoconazole shampoo treatments without sulfates, a fine-mist minoxidil sprayer, and minoxidil paired with tretinoin with the aim of improving absorption. He also works as a hair transplant referral specialist. Regrowth Intelligence brings that experience to AI.

  1. 1990s

    Regrowth.com

    A newsgroup that grew past 50,000 patients, physicians, dermatologists and trichologists — with moderators who called out product shills.

  2. 2009

    Regenepure & Minoxidil Spray

    Formulas built around ingredients members asked for but couldn't find in quality form.

  3. 2020s

    Hairloss.org

    A physician-facing AI and specialist finder.

  4. 2026

    Regrowth Intelligence

    The network's knowledge, rebuilt as an AI — and widened from hair to longevity.

February 29, 2000

From the archive

Regrowth.com as the Internet Archive's Wayback Machine captured it on Feb 29, 2000.

Regrowth.com homepage, February 2000, with headlines, treatments, transplants, online chat, discussions and product reviews.
The Regrowth network at the turn of the millennium: treatment and transplant guides, online chat, discussions, self-diagnosis, product reviews and a doctor finder, years before any of it existed on social media.
Browse it on the Wayback Machine

Let's talk

Get in touch

Partnerships, press, specialists, product questions or anything else; reply within a few business days, or email regrowthguy@hairloss.org.

or email regrowthguy@hairloss.org

Hair transplant surgeon, dermatologist or trichologist? List your practice in the Hairloss.org specialist finder

List your practice

Contact Scott

Press, partnerships and specialists

regrowthguy@hairloss.org
Email Scott