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Skincare peptides: what works, what’s hype

Peptides are among the gentlest anti-aging ingredients you can use. Some have decent evidence for the look of fine lines and firmness; others are mostly marketing. Here is everything, rated.

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What are skincare peptides?

Peptides are short chains of amino acids, the building blocks of proteins like collagen. In skincare they act as messengers, carriers or blockers. None of them work like a prescription retinoid, but they are well tolerated, which makes them a good fit for sensitive skin.

The 4 types, rated

TypeWhat it doesEvidence
Signal peptides
e.g. palmitoyl pentapeptide-4 (Matrixyl)
Help skin look smoother and firmer. Small trials, mostly positive.Some evidence
Carrier peptides
e.g. copper tripeptide-1 (GHK-Cu)
Deliver copper to skin. Lab data is strong; human trials are small.Some evidence
Neurotransmitter-inhibiting
e.g. acetyl hexapeptide-8 (Argireline)
Target the look of expression lines. Modest effects in small studies.Some evidence
Collagen “peptide” creams
Collagen in a cream
Collagen is too large to get into skin. It moisturizes, nothing more.Mostly hype

Guides

Top products

Best overall
The Ordinary

Multi-Peptide + Copper Peptides 1% Serum

Why we like it: Copper peptides plus a multi-peptide blend in one light layer, at an easy entry point.

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Gentlest
The Ordinary

Multi-Peptide + HA Serum

Why we like it: A gentle all-rounder: several peptides with hyaluronic acid, easy to fit into any routine.

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Best cream
Drunk Elephant

Protini Polypeptide Cream

Why we like it: A peptide-rich moisturizer that helps skin look firmer and bouncier.

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See all 10 best peptide serums

FAQ

What do peptides do for skin?

Peptides are short chains of amino acids. In skincare, some act as messengers that help skin look smoother and firmer, some carry minerals like copper, and some target the look of expression lines. Effects are gradual and modest.

How long until I see results?

Most studies measure changes after 8 to 12 weeks of daily use. If nothing has changed after three months, try a different product type.

Can I use peptides with retinol and vitamin C?

Generally yes. Many people use retinol at night and peptides in the morning. Copper peptides are often kept apart from strong acids and pure vitamin C. See copper peptides vs retinol.

Are peptides safe in pregnancy?

Topical peptides are generally considered low risk, but data in pregnancy is limited. Check with your doctor or midwife.