Acetyl Tetrapeptide-9

Acetyl Tetrapeptide-9 is a cosmetic ingredient used as a skin conditioning agent. It is used in 39 products in our dataset. It is regulated in the EU (listed in a Cosmetics Regulation annex).

INCI nameACETYL TETRAPEPTIDE-9
FunctionSKIN CONDITIONING
CAS number-
Prevalence39 products (0.04% of dataset)
Most used inSkincare
EU statusRestricted (annex )
Monthly searches30

Used in

Serums 25.6%General Moisturizers 17.9%Night Moisturizers 17.9%Eye Moisturizers 10.3%Facial Treatments 5.1%Sheet Masks 5.1%

Frequently asked

What does Acetyl Tetrapeptide-9 do in skincare?
Acetyl Tetrapeptide-9 functions as a skin conditioning agent in cosmetic formulas.
Is Acetyl Tetrapeptide-9 allowed in cosmetics?
Yes, but it is regulated in the EU — it appears in a Cosmetics Regulation annex with usage conditions.
What products contain Acetyl Tetrapeptide-9?
It is most commonly found in Skincare products, especially serums (25.6% of its uses).

Manufacturers with experience using Acetyl Tetrapeptide-9

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