Hair Serum Hair Serum Support visibly thicker, stronger hair at the scalp.1-3 A lightweight, fast-absorbing hair serum to complement our Hair Growth Nutraceuticals. View Ingredients List Support visibly thicker, stronger hair at the scalp.1-3 A lightweight, fast-absorbing hair serum to complement our Hair Growth Nutraceuticals.View Ingredients List A 2-step routine for the best possible results. Hair Growth Nutraceutical + Hair Serum Supports hair health from the inside and out. Supports hair health from the inside and out. Learn More Clinically tested Physician- formulated Color and extension safe Recommended usage Apply a full dropper of serum directly to your scalp, sectioning wet or dry hair with the dropper tip as you go. Use enough serum to cover areas of concern. Massage with fingertips. Do not rinse. Use once daily. Benefits Ingredients that: Support visible hair thickness and strength2,3 Visibly reduces hair breakage2 Replenishes nutrients directly at the scalp4-6 Formulated without Silicones, sulfates, hormones, drugs, parabens, phthalates.