Tetrapeptide-26 is a synthetic peptide used in skincare formulations to help improve skin health, hydration, and resilience. It belongs to a group of short-chain amino acid peptides designed to signal the skin to perform beneficial functions such as repair and moisture retention.
 
Applications: Anti-aging skincare formulations Skin barrier repair creams Moisturizing serums and lotions
Appearance:  White to off-white powder (sometimes supplied as a clear to slightly hazy aqueous solution depending on supplier)
Solubility:  Soluble in water
pH Range: Typically stable in pH 4.0 – 7.0
Chemical Formula:  Varies depending on the specific peptide sequence
Cas. No: Not universally standardized