Acetyl Tetrapeptide-40 is a synthetic bioactive peptide used in skincare formulations to help reduce inflammation-related skin redness, support barrier stability, and improve uneven skin tone. It is primarily classified as an anti-inflammatory and tone-correcting peptide, often used in products targeting sensitive, reactive, or pigmentation-prone skin.

It is commonly found in:

Brightening serums
Anti-redness creams
Sensitive skin moisturizers
Post-inflammatory hyperpigmentation (PIH) care
Barrier repair formulations

Its main cosmetic role is to calm inflammatory signaling that contributes to redness and uneven pigmentation.

Product Name: Acetyl Tetrapeptide-40

CAS No.: 1472633-28-5

Assay: ≥98%

Molecular Weight: 447.44g/mol

Molecular Formula: C17H29N5O9

Appearance: White Powder

Storage Condition: Sealed, stored at -20°C for long-term storage

Package Quantity: 1g,10g,100g or according to the customer’s requests

Packing material: Aluminium foil bag or plastic bottle

Reduces fine lines and wrinkles

Tightens loose skin

Smooths rough skin

Boosts skin hydration