How long until my hair looks fuller and thicker?

Many users notice a cleaner, refreshed-feeling scalp within the first weeks. For a visible change in how full and healthy hair looks, Dr. Lin recommends consistent daily use for 3-6 months. Hair changes gradually, so patience and consistency matter. Individual results vary.

Why combine topical and oral together?

Great-looking hair depends on several things — the scalp environment, well-conditioned strands, and good nutrition. The kit cares for all three together: topical care for the scalp and hair, plus internal nourishment from within. This inside-and-outside approach is what makes the MD Hair system distinctive.

Does the kit contain any drugs or hormones?

No. The entire kit is drug-free and hormone-free. It does not contain minoxidil, finasteride, ketoconazole, or any pharmaceutical drug. All ingredients are peptides, botanical extracts, marine-derived collagen, and quality nutritional ingredients.

Is the formulation patented?

Yes. The MD Hair system is protected by an international patent portfolio including U.S. Patent Application Publication 20100249043, PCT/US2010/000843, WIPO Publication WO-2010110863-A2, Korean Application KR 20120012965-A, Hong Kong Patent HK 1157672, and Chinese Patent CN 101283957.

Can I use the MD® Hair Care System if my hair is shedding after pregnancy, during menopause, or on Ozempic®?

Shedding after pregnancy (postpartum), around menopause, or with rapid weight loss on GLP-1 medications such as Ozempic® is common and often temporary — see your doctor to check for underlying causes. The MD® Hair Care System is not a treatment for hair loss. Its topical steps, MD® Scalp Essential and MD® Follicle Energizer, are cosmetics you can use to keep the scalp conditioned and hair looking fuller during that time, and its daily MD® Nutri Hair capsule provides nutrients that support healthy hair growth.* If you are pregnant or nursing, including breastfeeding after delivery, talk to your doctor before taking any supplement or starting any new topical product. *This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

MD® Hair Care System: MD® Nutri Hair, MD® Scalp Essential, and MD® Follicle Energizer by Dr. Susan Lin, M.D.

MD® Follicle Energizer scalp serum tube with laboratory glassware

MD® Nutri Hair supplement bottle and capsules, physician-formulated with lilac extract

MD® Scalp Essential 60 mL dropper bottle by Susan F. Lin, M.D., a leave-on scalp serum with botanicals

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MD® Hair Care System

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Why the MD® Hair Care System

3-Step Inside + Outside Regimen Peptide-Based · Physician-Formulated Scalp-to-Strand Care Medcin 50-Subject Patch Test Lilac Stem Cell Verbascoside Color-Safe Women + Men Daily Routine

Physician-Formulated · Peptide-Based · Non-Comedogenic

Meet the MD® Hair Care System, a physician-developed 3-step peptide regimen designed to nourish the scalp and support the appearance of fuller, thicker, healthier-looking hair. Combines cosmetic-grade peptides, lilac stem cell extract, and marine botanicals for scalp care and the look of denser hair.

1Scalp Care

MD® Scalp Essential: Gentle exfoliation with mandelic acid, lilac stem cell extract, and caffeine to help refresh and balance the scalp environment.

2Peptide Serum

MD® Follicle Energizer: Peptide serum with Biotinoyl Tripeptide-1 and marine extracts to condition hair and support the appearance of denser strands.

3Internal Nourishment

MD® Nutri Hair Supplement: Nutrient-rich capsules with lilac stem cell extract, marine collagen, and flaxseed lignans to support shine from within.

Clinical evidence on file: MD Scalp Essential evaluated at Medcin Instituto da Pele per GCP/Helsinki; in a 50-subject repeat insult patch test, no sensitization was observed under study conditions. MD Follicle Energizer is also one of the two serums in the MD® Hair Care System — Complete Set, which was evaluated in a 17-week independent consumer study at Spincontrol North America. MD Nutri Hair bioavailability confirmed at an independent Canadian analytical laboratory. Backed by MD Hair international patent portfolio.

→ Full hair clinical evidence dossier

We create beauty and wellness through advanced science™

Physician-Formulatedby Dr. Susan Lin, M.D.

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30-Day Returnssatisfaction guaranteed

Peer-Reviewed SafetyJCLT 2008 (PMID 18569264)

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Find Your Routine

Seeing Is Believing

Before using the MD® Hair Care System, hair may look flat, fine, or dull, and the scalp may feel unbalanced. After the first weeks of use, the scalp feels refreshed. With about 3 months of consistent use, hair can look thicker, shinier, and healthier, with improved texture and a fuller look. Individual results vary.

3-Step Physician-Developed Routine for Stronger-Looking, Fuller-Looking, Healthier-Looking Hair

Care for your hair with the MD® Hair Care System, a 3-step routine that pairs scalp care, a peptide hair serum, and daily nourishment. This physician-developed collection by Dr. Susan Lin, M.D. combines well-studied cosmetic ingredients and botanicals to refresh the scalp, condition hair, and nourish hair from the inside out. Ideal for fine or thinning-looking hair and for anyone who wants a healthier-looking scalp.

Key Benefits

Less breakage from brushing and styling, for hair that feels stronger
Conditions hair for a thicker-looking, fuller-looking, shinier look with consistent use
Gently exfoliates and balances the scalp for a clean, refreshed feel
Non-hormonal, drug-free, and safe for color-treated hair
Physician-developed and suitable for all hair types

MD® Hair Care System video featuring MD® Nutri Hair, MD® Follicle Energizer, and MD® Scalp Essential

3-Step Physician-Developed System for Fuller-Looking Hair

A complete physician-formulated hair care routine — combining scalp care, a peptide hair serum, and daily nourishment for fuller-looking hair with consistent use.

The MD® Hair Care System is built on Dr. Susan Lin's view that great-looking hair depends on three things — a balanced scalp, well-conditioned strands, and good daily nutrition — and that a routine works best when it cares for all three together. The 3-step system layers scalp care, a peptide hair serum, and daily nourishment into one simple routine.

Each step has its own job: the scalp step gently clears buildup and leaves the scalp feeling clean and balanced, the peptide serum conditions hair at the root for a fuller-looking, denser-looking result, and the daily capsule provides nutrients such as biotin and marine collagen to nourish hair from within.

Suitable for women and men who want fuller-looking, healthier-looking hair, including fine or thinning-looking hair. Non-hormonal. Drug-free. Color-safe. Physician-developed for all hair types.

Woman with long brown hair next to MD Nutri Hair supplement bottles on a reflective surface.

What to Expect

DIVE INTO THE EVIDENCE

The MD® Hair Care System delivers a refined, luxurious experience that changes not only how your hair looks but your whole approach to scalp and hair care. From the first application, the lightweight formulas absorb effortlessly, leaving no greasy residue, only a fresh, clean feel. The formulas work in harmony to cleanse, nourish, and condition, for hair that looks denser and more vibrant. With consistent use, hair can look thicker and feel smoother. This is more than a quick fix. It is an investment in long-term hair care, formulated by a physician.

Key Ingredients

The MD® Hair Care System combines high-performance ingredients to nourish and condition hair from the inside out. Each ingredient is selected for its role in scalp care and in helping hair look thicker, stronger, and healthier.

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· •Peptides & Biotinoyl Tripeptide-1 – Condition hair at the root for stronger-looking, fuller-looking strands.

· •Antioxidant-Rich Botanicals – Lilac Stem Cell Extract and Flaxseed Lignans help protect against environmental stress and leave the scalp feeling balanced.

· Exfoliants & Hydrators – Mandelic Acid gently cleanses and exfoliates the scalp, while Marine Collagen helps hair feel stronger and more elastic.

· Energizing Botanicals – Caffeine gives the scalp a refreshed, invigorated feel.

Woman with blonde hair next to MD Nutri Hair products on a gray background

How to Use

With consistent use of the MD® Hair Care System, hair can look denser and feel stronger, with a smoother texture. Within the first weeks, the scalp feels refreshed and balanced. Over about 3 months of daily use, hair can look thicker, healthier, and shinier. Individual results vary.

For optimal results, follow the 3-step process daily:
1.MD Scalp Essential – Apply directly to the scalp, focusing on areas of buildup or discomfort. Massage gently and leave in to exfoliate and balance the scalp.
2.MD Follicle Energizer – Use the precision applicator to apply to areas of the scalp where hair looks thinner. Gently massage to ensure absorption. Do not rinse.
3.MD Nutri Hair – Take one capsule daily to support hair health from within. For best results, continue use for 3–6 months.
Consistency is key to visible results.

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Clinical laboratory footage showing the formulation of MD Hair. Physician-led research into lilac plant stem cell technology for hair density.

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WRITTEN BY OUR PHYSICIAN

Guides from Dr. Susan Lin, M.D.

Frequently Asked Questions

Man wearing a white t-shirt with MD Hair care products

The MD® Hair Care System is a physician-developed 3-step system by Dr. Susan Lin, M.D. that combines scalp care, a peptide hair serum, and internal nourishment. Includes MD® Scalp Essential, MD® Follicle Energizer, and MD® Nutri Hair Supplement. Drug-free and hormone-free.

Step 1: MD® Scalp Essential gently exfoliates with mandelic acid, lilac stem cell extract, and caffeine. Step 2: MD® Follicle Energizer is a peptide serum with Biotinoyl Tripeptide-1 and marine extracts. Step 3: MD® Nutri Hair Supplement delivers internal nourishment with lilac stem cell extract, marine collagen, and flaxseed lignans.

Apply MD® Scalp Essential to a clean, towel-dried scalp and massage gently — use 2-3 times per week. Follow with MD® Follicle Energizer applied to areas where hair looks thinner, daily at night. Take one MD® Nutri Hair capsule daily with food. Consistent daily use is key.

Yes. The kit is safe for color-treated hair, sensitive scalps, and daily use. Every product in the system is drug-free, hormone-free, and dermatologist-tested.

No. The MD® Hair Care System is formulated without hormones, drugs, or harsh chemicals. The formulas are designed to be gentle for daily hair and scalp care, for fuller-looking, healthier-looking hair. You can use this set with confidence as part of your everyday routine.

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