- Palmitoyl tripeptide-5 is a three-amino-acid peptide attached to a fatty acid.
- It's a 'signal peptide' used to support the look of firmness.
- The palmitoyl part helps it mix into skincare and sit well on skin.
What the name means
Tripeptide means three amino acids. Palmitoyl refers to palmitic acid, a fatty acid attached to the peptide. That fatty acid makes the peptide more oil-compatible, which helps it perform in a serum.
What it does
Palmitoyl tripeptide-5 is known as a signal peptide: a peptide used because it's associated with supporting the skin's own collagen. In practice, that means it's used to help skin look firmer and plumper over time.
How it works with GHK-Cu
GHK-Cu and palmitoyl tripeptide-5 both focus on firmness, but they're different molecules with different profiles. Using them together is a common formulation strategy for a more complete firming effect. Read more in what is GHK-Cu.
Who it suits
Anyone noticing their skin looks less bouncy than it used to, often from the mid-30s onward. See copper peptides in your 30s and in your 40s.
FAQ
Is palmitoyl tripeptide-5 a collagen?
No. It's a peptide, a short chain of amino acids, used because it's associated with supporting the look of firm skin.
Can I use it every day?
Yes, it's designed for daily use, morning and night.
Does it work on its own?
It can, but peptides are often combined so each one covers a different concern.
This article is for general information only and isn't medical advice. DOSE is a cosmetic product and is not intended to diagnose, treat, cure or prevent any disease. Individual results vary.