The Ordinary’s Multi-Peptide Serum for Hair Density is a concentrated treatment that encourages thicker-looking hair. Powered by a blend of peptide technologies and plant extracts, including Redensyl™, Procapil™, Capixyl™, Baicapil™, Anagain™ and caffeine, the serum nourishes the scalp in order to promote optimal conditions for healthy-looking hair growth. Complete with an easy-to-use pipette applicator, the leave-in serum leaves strands with a fuller appearance. Suitable for all hair types.