Acetyl Tetrapeptide-40

Functions
Anti-inflammatory
Protective
Soothing
Skin conditioning
CAS Number(s)
1472633-28-5

Acetyl Tetrapeptide-40 is a synthetic peptide that decreases the realize of pro-inflammatory interleukins (IL-6 and IL-8) fighting against skin redness, erythema, and telangiectasias. It is known under the trade name Telangyn™ and the sequence is Acetyl-Ala-Thr-Asn-Thr.

Cathelicidins are antimicrobial peptides that protect the skin from infections. LL-37 is a 37-amino-acid-long peptide, a human cathelicidin. Its overexpression increases pro-inflammatory interleukin production resulting in an excessive inflammatory response appearing as erythema, irritation, or similar skin conditions.

Acetyl Tetrapeptide-40 interleukins realize and normalize the skin's inflammatory response, reducing post-inflammatory hyperpigmentation, dilated capillaries appearance, and erythema. Limiting excessive immune response, it also prevents Matrix metalloproteinase (MMP) activation responsible for the skin's structural proteins (mainly collagen) destruction preserving skin elasticity, firmness, and resilience.

In addition, Acetyl Tetrapeptide-40 modulates UV-induced skin inflammation and exhibits photoprotective properties, reducing dermal cell damage and other negative effects. It is a safe and effective ingredient, used in minimal concentrations of 0.05% for after-sun, soothing, and anti-aging applications.
Synonyms
Telangyn™