The Ordinary Multi-Peptide Serum for Hair Density â¤ď¸Only 3 leftâ¤ď¸ 1. Promotes hair density: Stimulates hair follicles through a peptide complex, reduces hair loss, and promotes healthy hair growth. 2. Improves scalp environment: Gentle formula balances scalp condition and relieves dryness or sensitivity. 3. Strengthens hair roots: Nourishes hair follicles, enhances hair resilience, and reduces breakage. ââ 1. Multi-peptide combination: ⌠GHK-Cu (Blue Copper Peptide): Repairs scalp tissue and promotes collagen synthesis. ⌠Biotinoyl Tripeptide-1: Supports keratin production and improves hair strength. ⌠Acetyl Tetrapeptide-3: Extends the hair follicle growth phase and reduces telogen phase hair loss. 2. Caffeine: Stimulates follicular microcirculation and delays hair loss. 3. Zinc PCA: