MD® Follicle Activator — Peptide Scalp Concentrate
Full details, ingredients, and directions below.
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Step 1 of the MD HAIR™ system: care for the hair you have. MD® Follicle Activator is a high-potency, drug-free peptide concentrate formulated by Dr. Susan Lin, M.D. to support the look of a reinforced follicle anchor. One 4 ml concentrate is a full 3-month supply.
Acetyl Tetrapeptide-3 with red clover extract supports the appearance of the structures around each follicle, while niacinamide and panthenol condition the scalp and ergothioneine — one of nature's most durable antioxidants — helps defend against oxidative stress. Lightweight, non-greasy, invisible in styled hair.
In a 17-week (119-day) self-evaluation study of the MD HAIR™ two-step system — Follicle Activator and Follicle Energizer used together — conducted by Spincontrol North America: 71% of the 24 subjects analyzed (32 enrolled) agreed their hair growth had improved, a statistically significant result, and 75% would recommend it to a friend. The study was open and non-comparative, with no placebo group, and results are based on a self-evaluation questionnaire, not instrument measurement. Individual results vary.
Key Ingredients
Named, clinically-studied actives — not a generic conditioning blend. Rotate through each one.
A signalling peptide paired with red clover extract, focused on the appearance of the structures at the base of each follicle — the reason the Activator is Step 1 of the topical protocol.
Benefit: Supports the look of a reinforced follicle anchor before conditioning begins.
One of nature's most durable antioxidants, retained in tissue far longer than most dietary antioxidants. Included to help defend the scalp against day-to-day oxidative stress.
Benefit: Long-lasting oxidative defence for the follicle environment.
Niacinamide (vitamin B3) and panthenol (vitamin B5) condition the scalp and smooth the hair cuticle, keeping the concentrate lightweight and invisible in styled hair.
Benefit: A comfortable, non-greasy morning application you can style straight over.
MD HAIR addresses the same biology the leading hair drugs are known for — the DHT pathway, follicle signaling, and the natural cycle — with plant-derived and peptide actives instead of drugs.
How to Use
A few drops on the scalp each morning, focused on thinning zones; massage in and leave on. Pair with MD® Follicle Energizer at night — together they form the 2-step MD HAIR™ Restoration System.
Frequently Asked Questions
Follicle Activator is not a drug — it works through peptide signaling and plant-based botanicals rather than a vasodilator drug pathway, so there's no drug-related shedding rebound or systemic side-effect profile. It can be used alongside minoxidil, or on its own by people who prefer drug-free.
Before hair can look thicker it helps to support fewer visibly loose strands. Acetyl Tetrapeptide-3 focuses on the look of the structures at the follicle base — that's why the Activator comes first, and the conditioning Energizer second.
Both. Thinning at the crown, temples, or part line relates to the same follicle biology.
Expect 3–6 months of daily use; photograph your part line monthly to track it honestly.
Physician-formulated by Dr. Susan Lin, M.D. · Drug-free, works with or without minoxidil · Made in USA · We create beauty through advanced science™
Physician Founder · La Canada Ventures, Inc.
“I built MD HAIR so people could act on thinning early — without a drug they may not tolerate.”
Board-certified OB/GYN and anti-aging physician with 35+ years of clinical practice. Launched the first MD® product in 2008 and is the named inventor on the MD® patent portfolio.
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