Peptide CK is a synthetic bioactive peptide commonly used in cosmetic and dermatological formulations for anti-aging and skin rejuvenation. It is designed to mimic natural skin signaling molecules, helping to stimulate cellular activity and improve skin structure.
This peptide works primarily by promoting collagen and elastin synthesis, which strengthens the skin’s extracellular matrix. It helps reduce the appearance of fine lines, wrinkles, and sagging, while improving skin elasticity, firmness, and overall texture.
 
Applications: Used in anti-aging, firming, and skin-repair cosmetic formulations such as serums, creams, lotions, and eye treatments. It helps reduce fine lines and wrinkles, improve skin elasticity, and promote overall skin regeneration.
Appearance:  White to off-white powder
Solubility:  Water-soluble; compatible with aqueous and emulsion-based formulations
pH Range: Typically stable in formulations with pH 4.0 – 7.5
Chemical Formula: C₁₈H₃₂N₆O₆
Cas. No: Not widely standardized in literature; some suppliers list it as proprietary peptide sequences without a specific CAS number.