Palmitoyl Tetrapeptide-7

INCI: Palmitoyl Tetrapeptide-7
 Category: Signal Peptide / Anti-Glycation Active 
Used in: Serums, moisturisers, eye creams, anti-ageing treatments
Typical Usage Level (Topical): 1%–3% of the raw material/solution in a final formula.

What This Ingredient Does

Palmitoyl Tetrapeptide-7 is the second component of the Matrixyl 3000 complex. Its primary role is distinct from Palmitoyl Tripeptide-1: rather than directly stimulating collagen synthesis, it works by reducing interleukin-6 (IL-6), an inflammatory cytokine that accelerates skin ageing and contributes to glycation — the process by which sugar molecules degrade collagen fibres and reduce skin elasticity. By moderating this inflammatory and glycation pathway, it helps preserve existing collagen while Palmitoyl Tripeptide-1 stimulates new production. Together, they address skin ageing from two different biological angles.

Key Benefits

  • Reduces IL-6-driven inflammation that accelerates structural skin ageing

  • Inhibits glycation, protecting existing collagen fibres from sugar-induced degradation

  • Complements Palmitoyl Tripeptide-1 for a dual-mechanism approach to firmness

  • Supports reduction in wrinkle depth and improved skin surface smoothness

  • Well-tolerated across skin types with no known irritation risk

Who It's Best For

  • Those with early to moderate signs of skin ageing loss of firmness, deeper expression lines

  • High-sugar diet or diabetic-adjacent skin where glycation is a concern

  • Sensitive skin looking for a non-irritating collagen-support pathway

  • Best used as part of Matrixyl 3000 complex rather than in isolation

Clinical Note by Dr. Su

The anti-glycation angle of Palmitoyl Tetrapeptide-7 is clinically relevant but rarely explained to patients. Glycation silently stiffens and degrades collagen, and no amount of topical collagen repairs that. Reducing the rate of glycation through this peptide is a more scientifically grounded approach than using collagen creams.

References

Gorouhi F & Maibach HI. (2009). Role of topical peptides in preventing or treating aged skin. International Journal of Cosmetic Science. PMID: 19804551

(These references explain the scientific context not proprietary product testing.)