Peptides: The Protein Powerhouse Your Skincare Routine Is Missing
Summary
Peptides came up in that same “Skin Health” class I took on masterclass.com, which I mentioned before. Peptides turned out to be one of the most underrated ingredients on many people’s list.
Peptides are essentially chains of amino acids — the building blocks our skin already uses to make collagen and other proteins — and our body naturally produces them, just less as we get older. Unlike some other actives, peptides play well with almost everything else in your routine, including vitamin C, hyaluronic acid, and retinoids, and they’re gentle enough to use morning or night without worrying about sun sensitivity.
Here’s what different peptides actually do, and how to pick a product that has enough of them to make a difference.
Table of Contents
What Peptides Are (and Why They Matter for Your Skin)
Peptides are essentially short chains of amino acids, the same building blocks that make up the proteins in our skin. Every different combination of amino acids creates a distinct peptide, each with its own job and benefit. Our skin produces peptides naturally, but that supply decreases as we age.
Peptides get along well with pretty much everything else in our routine — vitamin C, hyaluronic acid, retinoids — without causing irritation, and if we can’t tolerate retinoids, they’re a solid alternative. They can be used morning or night, and they’re not sensitive to UV light!
The Peptides Worth Knowing
- Copper peptides: help regenerate skin and restore some of its more youthful function.
- Collagen peptides: help stimulate collagen production for a plumper look.
- Argireline: works by blocking the nerve signal that triggers muscle movement — it’s often marketed as “Botox in a bottle.”
- Enzyme-inhibiting peptides: help quiet down MMPs, the molecules that break down collagen; especially useful in areas like wound healing.
How to Shop for a Peptide Product That Actually Works
Look for peptides listed among the first three or four ingredients — if they’re buried near the bottom of the list, there’s probably not enough in the formula to do much.
- For collagen production, look for Matrixyl (palmitoyl pentapeptide-4).
- For collagen production plus anti-inflammatory benefits, look for GHK-Cu (copper tripeptide-1).
- For fine lines and wrinkles, look for argireline (acetyl hexapeptide-8).
- For skin elasticity, look for copper peptides.
Ideally, pick a product that combines a few of these for layered benefits. Peptides tend to work best in serums and moisturizers.
