Acetyl Tetrapeptide-9
What is Acetyl Tetrapeptide-9?
Acetyl Tetrapeptide-9 is a synthetic signaling peptide made from four amino acids acetylated for improved stability and skin penetration. It falls under skin conditioning agents in cosmetics, appearing in serums, creams, and eye treatments aimed at mature skin. This ingredient functions by imitating matrikines, natural breakdown products of the extracellular matrix that signal cells to rebuild tissue. Upon application, it reaches dermal fibroblasts, encouraging production of collagen types I and IV, laminin-5, and fibronectin. These components form the skin's supportive scaffold, aiding its structural resilience. Its compact size facilitates absorption through the stratum corneum without needing advanced delivery systems. In formulations, it remains stable across pH ranges and complements humectants or emollients effectively.
Benefits
Supports natural collagen synthesis in the dermis.
Promotes skin firmness and elasticity appearance.
Suitable for delicate areas like under eyes.
Who It's For
A quick guide for who this ingredient may suit (and who should be cautious).
| Who May Benefit | Who Should Avoid |
|---|---|
| Individuals noticing signs of aging skin. | People with known peptide sensitivities. |
| Those incorporating matrix-supporting ingredients. | Those experiencing skin barrier compromise. |
| Users seeking firmer skin texture over time. | Anyone noticing irritation upon patch testing. |
Safety Notes
- Low hazard rating from safety assessments.
- Minimal irritation potential in topical use.
Frequently Asked Questions about Acetyl Tetrapeptide-9
What is Acetyl Tetrapeptide-9?
A stable synthetic tetrapeptide used as a skin conditioning agent to signal collagen production.
Is Acetyl Tetrapeptide-9 safe for daily use?
Generally safe topically with low irritation risk per cosmetic reviews.
How does it function in products?
Mimics matrikines to encourage fibroblast activity for matrix components.