For healthy hair, use The Ordinary Multi-Peptide Serum For Hair Density. Designed using a concentrated formula, this serum supports the growth of healthy hair for a thicker & fuller look. It is super lightweight for faster penetration into the scalp & is formulated using special technologies such as Redensyl complex, which targets stem cells as well as fibroblasts in the dermal papilla to help increase hair density; Procapil peptide complex, which supports increased blood flow to the scalp & Baicapil complex, which aids in increasing hair volume & thickness of individual hair strands. Apart from adding volume, this serum also helps to correct flaky & dry scalp. It is recommended for straight, coily, curly, & wavy hair types & thick, fine, & medium hair textures. When using this serum, apply a few drops to a clean scalp & thoroughly massage the product into the scalp. Apply once every day, preferably at night. This serum is a leave-in treatment, & there is therefore no need to wash your hair after application. Alcohol-free, Gluten-free, Cruelty-free, Silicone-free, Nut-free, 100% vegan.