Alongside retinol and hyaluronic acid, peptides have become a staple of anti-aging skincare. You will find them in drugstore creams and luxury brands alike. But what is a peptide, and why are they so interesting for mature skin?
What is a peptide?
A peptide is a short chain of amino acids, the building blocks of the skin's proteins. In cosmetics, peptides are chosen for their benefits on the appearance of skin: smoother, firmer-looking, more comfortable.
Why mature skin likes them
- They are usually well tolerated: unlike some strong ingredients, they generally suit sensitive skin.
- They can be used morning and evening, with no adjustment period.
- They combine easily with most other ingredients.
Peptides and hyaluronic acid: the right pair
Hyaluronic acid helps skin hold water, for a plumper, more comfortable feel. Together with peptides in a cream, it helps smooth the look of wrinkles and leaves skin looking firmer.
The main families of peptides
Formulators often distinguish three families. This helps when reading a label, but how much a product does always depends on the whole formula and the concentration.
| Family | Role in a product | Example on an INCI list |
|---|---|---|
| "Signal" peptides | Chosen for the look of firmness and smoothness | Palmitoyl Tripeptide-1 |
| "Carrier" peptides | Paired with a mineral, often copper | Copper Tripeptide-1 |
| So-called "relaxing" peptides | Chosen for the look of expression lines | Acetyl Hexapeptide-8 |
Peptides or retinol: which should you choose?
| Peptides | Retinol | |
|---|---|---|
| Tolerance | Generally good | Can irritate at first |
| When to use | Morning and evening | Usually evening |
| Adjustment | Generally none | Gradual introduction |
| Sun | Daily sunscreen, as always | Sunscreen essential |
If retinol does not suit you, read our comparison of retinol alternatives. If you are pregnant or breastfeeding, ask a healthcare professional before choosing an anti-aging product.
How to add them to your routine
- Cleanse your skin gently.
- Apply your serum.
- Finish with a peptide cream, morning and evening.
- In the morning, add sunscreen.
Our Peptide Day & Night Cream combines peptides and hyaluronic acid in a vegan formula designed for mature skin, COSMOS Natural certified by ECOCERT Greenlife (99% of the total is of natural origin). For the eye area, the Peptide Eye Cream follows the same principle in a lighter texture, with the same certification. Both contain a fragrance of natural origin. Product-by-product details are on our Certifications page.
Frequently asked questions
When will I notice a difference with peptides?
Comfort can be felt quickly. For the look of wrinkles, allow several weeks of regular use. Results vary from person to person.
Serum or peptide cream?
Both exist. A peptide cream is a simple way to start because it also hydrates. A serum always goes before cream.
Can I use peptides with a retinol alternative?
Yes, they combine well. For example: Retinol Alternative Serum, then peptide cream.
Are peptides suitable for sensitive skin?
They are usually well tolerated. As with any new product, patch test on a small area if your skin reacts easily.