<p><b>What it is</b><strong>:</strong> A concentrated leave-in formula designed to support the scalp and give you thicker, denser, fuller-looking hair.</p><p><b>What it does</b><strong>:</strong> 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. This formula contains REDENSYL™, Procapil™, CAPIXYL™, BAICAPIL™, AnaGain™, and High-Solubility Caffeine. All trademarks belong to their respective owners. 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 are affiliated with the trademark owners.</p><p><b>How to use</b><strong>:</strong> Massage a few drops thoroughly into clean, dry scalp once daily, ideally at bedtime. The formula is a leave-in treatment. If irritation occurs, rinse off, cease use and consult a physician. Keep out of reach of children. Use in evening. The serum is good for 12 months after opening.</p>