The Ordinary Multi-Peptide Serum for Hair Density is a concentrated formula designed to promote thicker, denser, fuller and healthier-looking hair. The serum contains a 21.15% concentration of active technologies in an ultra-lightweight, emollient base for effective penetration. Key features: • Contains multiple peptide complexes including REDENSYL™, Procapil™, and CAPIXYL™ • Features 1% high-solubility caffeine • Ultra-lightweight, emollient base formula • Free from alcohol and silicone • Vegan and gluten-free • Cruelty-free • Made in Canada The serum should be applied once daily, ideally at bedtime, to clean and dry scalp. Massage thoroughly into the scalp as a leave-in treatment. The formula comes in UV-protective packaging and contains specialized complexes like BAICAPIL™ and AnaGain™ that work together to support optimal hair density and health. The pH level is between 4.75-5.75.