Achieve fuller and healthier-looking hair with The Ordinary Multi-Peptide Serum for Hair Density. This formula is concentrated with hair-reviving ingredients and advanced technologies to help your hair feel thicker, denser and healthier. The long list of technologies present in the formula make this serum a great multi-tasker, tackling and changing many aspects of your hair. The technologies include REDENSYL™ complex, CAPIXYL™ peptide complex, Procapil™ peptide complex, AnaGain™, BAICAPIL™ complex and High-Solubility Caffeine (1% net caffeine by weight). These transformative technologies are synergised in an incredibly lightweight, emollient base to ensure deep penetration to the follicle. The total concentration of these technologies in the serum is 21.15%. The Ordinary is a brand dedicated to making skincare more informative and honest. Each product is formulated by a team of biochemistry and chemistry specialists using the most highly purified and high-quality ingredients, presenting simple yet effective formulas based on clinical technology. This hair serum is best used at bedtime. Apply a few drops to a clean and dry scalp, massage thoroughly. This is a leave-in treatment, so hair should not be washed after application. This product is alcohol-free, silicone-free, gluten-free, cruelty-free and vegan.