The Multi-Peptide Serum for Hair Density is a concentrated leave-in formula designed to support the scalp and give the appearance of thicker, denser, and fuller hair. The formula is lightweight and offers a blend of peptide technologies along with a range of botanical extracts. Note: The technologies included in this formula are REDENSYL™, Procapil™, CAPIXYL™, BAICAPIL™, AnaGain™, and high solubility caffeine.