Tetrapeptide-21 is a synthetic bioactive peptide used in advanced anti-aging skincare formulations for its potential ability to stimulate extracellular matrix proteins, improve skin firmness, and reduce visible signs of aging.

It belongs to the class of signal peptides, which help regulate communication between skin cells and encourage repair and renewal processes.

Tetrapeptide-21 is commonly found in:

Anti-aging serums
Firming creams
Wrinkle treatments
Regenerative skincare products
Multi-peptide cosmetic systems

Its primary cosmetic purpose is to support smoother, firmer, and more resilient skin.

Product Name: Tetrapeptide-21

CAS No.: 960608-17-7

Assay: ≥98%

Molecular Weight: 389.41g/mol

Molecular Formula: C15H27N5O7

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

Anti-wrinkle & Anti-aging

Improve skin quality

Well-suited for skin care products, such as lotion, mask, morning and evening cream, eye essence and so on

Reduces fine lines and wrinkles

Tightens loose skin

Smooths rough skin

Boosts skin hydration