Peptides are the structural building blocks for brow definition. Our formula uses Myristoyl Pentapeptide-17 to condition and strengthen hair fibers, minimizing breakage and supporting the appearance of longer, fuller brows.

Biotin (Vitamin B7) is the essential vitamin for follicle resilience. It fortifies each brow hair from the root, helping to restore sparse or over-tweezed areas to their strongest, most resilient potential.

Panthenol (Pro-Vitamin B5) provides deep hydration for a smooth, refined texture. It acts as a humectant, coating the brow hair to improve elasticity and prevent the brittle feel often caused by aging or environmental stressors.

Sodium Hyaluronate is the "moisture magnet" for healthy brow skin. By holding 1,000x its weight in water, it ensures the skin beneath the brows remains hydrated, creating the ideal environment for healthy-looking hair.

Serenoa Serrulata (Saw Palmetto) is a botanical extract known for its ability to support hair density and balance the skin environment around the follicle.

These marine extracts are rich in minerals and antioxidants that protect the delicate brow skin from environmental pollutants and oxidative stress.

Yes, it contains a gentle amount of Retinyl Palmitate to support skin renewal in the brow area, helping prevent dead skin cells from clogging the follicles.

Niacin improves the appearance of skin texture and supports the moisture barrier, helping the skin stay hydrated so the Peptides can work more effectively.

Water (Aqua), Butylene Glycol, PPG-26-Buteth-26, PEG-40 Hydrogenated Castor Oil, Apigenin, Oleanolic Acid, Biotinoyl Tripeptide-1, Myristoyl Pentapeptide-17, Glycerin, Hydrolyzed Glycosaminoglycans, Sodium Hyaluronate, Panthenol, Biotin, Niacin (Vitamin B3), Retinyl Palmitate (Vitamin A), Pyridoxine HCL (Vitamin B6), Algae Extract, Saccharomyces/Zinc Ferment, Serenoa Serrulata (Saw Palmetto) Fruit Extract, Enteromorpha Compressa Extract, Ulva Lactuca (Sea Lettuce) Extract, Vitis Vinifera (Grape) Seed Extract, Rosmarinus Officinalis (Rosemary) Leaf Extract, Thymus Vulgaris (Thyme) Flower/Leaf Extract, Pueraria Lobata Root Extract, Aesculus Hippocastanum (Horse Chestnut) Seed Extract, Sodium Lactate, Sodium PCA, Sorbitol, Proline, Simmondsia Chinensis (Jojoba) Seed Oil, C12-15 Alkyl Benzoate, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Xanthan Gum, Triethanolamine, Disodium Phosphate, Caprylyl Glycol, Phenoxyethanol.

The serum was developed by Dr. Susan Lin, a physician with over 35 years of clinical experience in anti-aging and dermatological care, ensuring a professional-grade, science-backed solution.

Yes. MD Brow Serum is formulated without parabens or harsh fragrances.

MD products are proudly developed and manufactured in the USA, adhering to the highest quality control and safety standards.

Physician-formulated means the product is built on medical expertise and evidence-based efficacy, focusing on the biological health of the follicle rather than just temporary cosmetic coatings.

MD Brow Conditioning Serum is formulated as a conditioning treatment focusing on peptides and vitamins. Please refer to our full ingredient list for our hormone-free approach to brow health.

We recommend a once-daily application. Our clinical study showed that 78% of users achieved significant results with once-daily use over 56 days. Applying more frequently will not speed up the growth cycle.

We recommend waiting 2–3 minutes for the serum to dry completely before applying brow pencils, gels, or powders to ensure the formula is fully absorbed.

This specific formula is optimized for the thicker skin and hair of the eyebrows. For lashes, we recommend using our MD Lash Factor®, which is specifically tested for the lash line.

No. Unlike styling gels, our conditioner is a lightweight, clear serum that absorbs fully into the skin and hair, leaving no residue or stiffness.

Yes. By nourishing sparse areas with Biotin and Peptides, the serum helps revitalize the appearance of areas thinned by over-tweezing or age.

It is designed for both. The conditioning agents increase the appearance of density (for thinning) and length/definition (for short or fine hairs).

Absolutely. The formula is clear, fragrance-free, and non-greasy, making it an excellent choice for men looking to thicken sparse or "salt and pepper" eyebrows.

No. Our serum is designed for topical application only to the eyebrow area and does not contain ingredients associated with iris color changes.

Yes. Since the serum is applied to the brow area and is a non-migrating formula, it is safe for contact lens wearers. 87% of clinical participants reported zero irritation.

When used as directed (once daily), a single tube typically lasts between 3 to 4 months, making it a highly cost-effective professional treatment.

Yes, the sleek, leak-proof applicator is designed for travel and fits easily into any TSA-approved toiletry bag.