Pentapeptide-18
Pentapeptide-18 is a skin conditioning ingredient. It’s in 6 products on Poliage, most often serum. Avoid lists on Poliage that include it: none.
Updated October 21, 2026
What it does
Contains Pentapeptide-18: skin-conditioning
Function listed in CosIng
Source: CosIng, the European Commission cosmetic ingredient database, ref 85801, accessed October 22, 2026.
Products that contain Pentapeptide-18
Avant
Avant pink orchid subtle restoring overnight serum
None of Poliage’s flag groups listed
Medik8
Liquid Peptides
Serum · None of Poliage’s flag groups listed
Medik8
Liquid Peptides Advanced MP
Serum · Lists silicones
Allies of Skin
Multi Peptides & Growth Factors (GF) Advanced Lifting Serum
Serum · None of Poliage’s flag groups listed
The Ordinary
Multi-Peptide + Copper Peptides 1% Serum
Serum · None of Poliage’s flag groups listed
The Ordinary
Multi-Peptide + HA Serum
Serum · None of Poliage’s flag groups listed
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