What is Peptides?
Peptides are short chains of amino acids - the building blocks of proteins like collagen. In skincare they act as “messengers” that signal skin to support firmness, smoothness and repair. They are gentle and non-irritating, which makes them the easy-going route to anti-ageing for skin that cannot tolerate strong actives.
How Peptides works
Different peptides do different jobs: signal peptides such as Matrixyl encourage the look of firmness; copper peptides support repair; and neuropeptides such as Argireline aim to relax the look of expression lines. Their effects are gradual and subtle rather than dramatic, and they layer well with almost everything.
Benefits of Peptides
Signal peptides encourage a firmer, bouncier look over time.
Softens the look of fine lines, especially expression lines.
A great anti-ageing option when retinol or acids are too much.
Copper peptides in particular support the skin’s recovery and barrier.
Is Peptides good for your skin type?
The main reason to use peptides - gradual firming and smoothing.
Gentle and low-irritation, unlike retinol or acids.
Lightweight and compatible with almost any routine.
Often paired with hydrators and barrier ingredients.
Lightweight peptide serums suit oily skin well.
Peptides vs other ingredients
Retinol is stronger and better-proven for lines and texture, but can irritate. Peptides are gentler with subtler results. Use peptides if retinol is too harsh, or layer peptides in the morning and retinol at night.
Collagen molecules are too large to absorb and mostly sit on top as a hydrator. Peptides are small enough to signal your skin, so they are the more active anti-ageing choice.
Signal peptides (Matrixyl) target firmness; copper peptides support repair; Argireline, a neuropeptide, targets expression lines. Many multi-peptide serums combine several.
How to use Peptides
Apply a peptide serum to clean skin, morning and/or night, before heavier creams. Peptides are slow and steady - give them a couple of months of consistent use. They layer well with hydrators, niacinamide and even retinol. Follow daytime routines with SPF.
Can you combine Peptides with other actives?
- With Retinol. Yes - a smart pairing. Peptides are gentle and can be used alongside retinol, or on alternate days, for firmness plus renewal.
- With Niacinamide / hydrators. Yes - peptides layer beautifully with niacinamide, hyaluronic acid and ceramides.
- With direct acids. Fine, but a very low-pH acid right before some peptides may reduce their effect - space them out or use at different times.
Side effects & safety
Peptides are among the gentlest active ingredients and rarely irritate. Copper peptides are best not layered directly with strong vitamin C or acids in the same step. Patch test new products. General information, not medical advice.