[ the ingredient series ]

What peptides do for your skin

Peptides · Matrixyl · Palmitoyl Pentapeptide-4 · Matrixyl 3000 · GHK-Cu

Texture

Peptides are the gentlest, lowest-stakes player in the active line-up. In cosmetic terms they smooth and soften. Think of them as a nice supporting cast member rather than the star of your routine: easy-going, comfortable, and happy to layer with almost anything.

What Peptides is

Peptides are gentle, well-tolerated actives aimed at the look of smoothness and softness. The evidence behind them is lighter and mostly short-term, so they earn a supporting role rather than top billing. They're easygoing with everything else, with one small caveat around copper peptides.

What Peptides is good for

a smoother, softer-looking finish
sensitive skin that wants something very gentle
rounding out a routine as a supporting step
anyone who prefers low-stakes, comfortable actives

How to use it

Works morning or night.
Treat it as a supporting step, not the headline act.
Copper peptides (GHK-Cu) are best kept apart from strong acids and vitamin C, just in case.
Easy to layer with the rest of your routine.

What it pairs with

Almost everything. The one caveat: copper peptides (GHK-Cu) may not love being layered with strong acids or vitamin C, so keep those apart just in case.

Peptides for specific concerns

peptides for fine lines

smooth and soften the look of the surface over time

copper peptides how to use

keep copper peptides apart from strong acids and vitamin C

peptides for sensitive skin

one of the gentlest, lowest-stakes actives to add

peptides vs retinol

peptides are a gentle supporting act, not a headline active

Frequently asked questions

What do peptides do for skin?

In cosmetic terms, peptides smooth and soften. They're the gentlest, lowest-stakes active in most line-ups, best treated as a comfortable supporting step rather than the star of your routine.

Are peptides worth it?

As a gentle supporting act, yes. The evidence behind peptides is lighter and mostly short-term, so they round out a routine nicely rather than doing the heavy lifting that stronger actives do.

Can I use peptides with other actives?

Mostly yes, they're easygoing. The one caveat is copper peptides (GHK-Cu), which are best kept apart from strong acids and vitamin C, just in case.

When will I see results from peptides?

The best-studied peptides show a smoother look over roughly 8 to 12 weeks of steady use. They're a patient, gentle step rather than a fast one.

Are peptides good for sensitive skin?

Yes. Peptides are among the gentlest actives, which makes them a comfortable, low-stakes choice for skin that reacts easily.

Baselit is a cosmetic skin-analysis app, not medical advice. This guide describes what ingredients do for the look and feel of skin. It is not a diagnosis or treatment, and it is no substitute for a doctor or dermatologist.