Tetrapeptide-1

Tetrapeptide-1 is a cosmetic ingredient used as a skin conditioning agent. It is used in 11 products in our dataset. It is regulated in the EU (listed in a Cosmetics Regulation annex).

INCI nameTETRAPEPTIDE-1
FunctionSKIN CONDITIONING
CAS number-
Prevalence11 products (0.01% of dataset)
Most used inSkincare
EU statusRestricted (annex )
Monthly searches10

Used in

Eye Moisturizers 45.5%Serums 27.3%General Moisturizers 18.2%Eye Masks 9.1%

Frequently asked

What does Tetrapeptide-1 do in skincare?
Tetrapeptide-1 functions as a skin conditioning agent in cosmetic formulas.
Is Tetrapeptide-1 allowed in cosmetics?
Yes, but it is regulated in the EU — it appears in a Cosmetics Regulation annex with usage conditions.
What products contain Tetrapeptide-1?
It is most commonly found in Skincare products, especially eye moisturizers (45.5% of its uses).

Manufacturers with experience using Tetrapeptide-1

Match with vetted US contract manufacturers that have hands-on experience formulating with this ingredient.