Tetrapeptide-21 Solution
10/23/2026 - We have switched vendors and have received an alternative supply of Tetrapeptide-21 Solution. Please reference the Specification Sheet found under the SDS & Tech Data tab for any changes.
CAS#: Mixture
Tetrapeptide-21 Solution is a novel bioactive and pure tetrapeptide with anti-aging properties based on the skin's own structures for use in skin care formulations.
Tetrapeptide-21 Solution has shown promise as a skin cream ingredient that can stimulate skin growth and repair. When collagen breaks down, it forms specific Tetrapeptides that signal to your skin that it was damaged and needs to make new collagen. So by applying Tetrapeptides topically, your skin believes it has lost collagen recently and needs to make more. It activates collagen production and therefore stimulates dermal filling, repair and renewal mechanisms of the skin.
INCI: Glycerin, Butylene Glycol, Water, Propanediol, Tetrapeptide-21, Ethylhexylglycerin, Benzoic Acid
Do not directly apply onto your skin. This product should be added to a formulation at the recommended usage rate.
Disclaimer
Statements contained herein have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat and cure or prevent disease. Always consult with your professional skin care provider.
California Prop 65 Statement: The following statement is made in order to comply with the California Safe Drinking Water and Toxic Enforcement Act of 1986. This product is not known to the State of California to cause cancer, birth defects or other reproductive harm.
SDS & Tech Data
Tetrapeptide-21 Solution Specification Sheet
Tetrapeptide-21 Solution SDS - Coming Soon!
Formulation Guide
Add after the emulsion has formed and cooled to 40°C or lower. Tetrapeptide-21 Solution is a preservative-free peptide solution. The cosmetic raw material should be kept under refrigeration until used in a properly preserved cosmetic formulation. Tetrapeptide-21 Solution is suitable for oil-in-water and water-in-oil formulations claiming anti-aging and anti-wrinkle properties.
Recommended Usage Rate: 0.5-5%
Appearance: Clear liquid
Odor: Characteristic
Solubility: Water Soluble
Long Term Storage: Recommended at 39.2°F (4°C)
