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The Seralune Guide to Peptide Skincare
A plain-English guide to peptide serums, single-active routines, and how to choose the right bottle for your skin goal.
By Elena Vale
Cosmetic chemist, MSc
Last updated June 4, 2026
Peptide skincare works best when the formula is specific. A peptide is a short chain of amino acids, and different peptide families are used for different cosmetic goals: smoothing, firmness, bounce, repair, or hair-density support.
Choose the active by the concern, not by the longest ingredient list.
Which Seralune serum is right for which concern?
| Concern | Start here | Why |
|---|
| Expression lines | Argireline | Acetyl Hexapeptide-8 targets the look of movement-related creases. |
| Loss of firmness | Matrixyl 3000 | A two-peptide blend selected for the appearance of collagen support. |
| Dehydrated skin | Hyaluronic Acid | 2% multi-weight sodium hyaluronate binds water for a plumper look. |
| Uneven tone | Azelaic Acid | 10% azelaic acid helps the look of clarity and calm. |