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Palmitoyl Pentapeptide-4 (Palmitoyl Pentapeptide-4 (Matrixyl Original))

Category: Skin & Anti-Aging. Status: Research compound.

The original Matrixyl peptide that stimulates collagen production through matrikine signaling. Widely used in anti-aging skincare formulations worldwide.

How it works

Mimics collagen breakdown products (matrikines) that signal fibroblasts to produce new collagen matrix components including types I, III, and IV collagen.

Key facts

  • Molecular weight: 802.05 Da
  • Half-life: N/A (topical depot effect)
  • Bioavailability: Topical: ~8-12% penetration
  • Storage: Room temperature, protect from direct sunlight.

Dosing overview

  • Typical dose: 2-8% in formulation
  • Frequency: 2x daily
  • Duration: 8-16 weeks
  • Route: Topical serum or cream

Protocol notes

  • Used as a leave-on serum or cream containing ~2-8% of the peptide, applied to clean skin.
  • Apply morning and night; pat a few drops over the face/neck and follow with moisturizer.
  • Visible collagen/wrinkle benefits typically take 8-16 weeks of consistent use.

Reported benefits

  • Proven collagen stimulation
  • Wrinkle depth reduction
  • Improved skin firmness
  • Well-tolerated

Possible side effects

  • Mild tingling
  • Rare sensitivity reaction

Research

  • Palmitoyl pentapeptide clinical efficacy (2017): Reduced wrinkle depth by 36% and improved skin thickness by 12% over 16 weeks.
  • Matrikine peptides in dermal remodeling (2019): Stimulated collagen I synthesis by 117% and hyaluronic acid by 200% in fibroblast assays.

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Research and educational reference only. Not medical advice.