Multi-Peptide Serum for Hair Density is a concentrated leave-in formula designed to support the scalp and give you thicker, denser, fuller-looking hair. The formula is lightweight and offers a combination of peptide technologies alongside a series of plant-based extracts. Note: The technologies found within this formula include REDENSYL, Procapil, CAPIXYL, BAICAPIL, AnaGain, and High-Solubility Caffeine. (References are made to third-party trademarks in this description. REDENSYL is a trademark of Givaudan, Procapil is a trademark of Sederma Inc., CAPIXYL is a trademark of Lucas Meyer Cosmetics Canada Inc., BAICAPIL is a trademark of Provital, S.A., and AnaGain is a trademark of Mibelle Biochemistry. Neither DECIEM nor The Ordinary is affiliated with the trademark owners.)