
Peter Thomas Roth
Firm X Collagen Serum
60%
Medium match
Low irritancy
4/9
key actives shared
1/1
hero shared
31%
of the original's ingredients
Why it's a dupe
- Both are serums.
- Same hero ingredients:Acetyl tetrapeptide-2
- Both contain:SqualaneSodium hyaluronateGlycerin
- Both contain peptides.
- Both work for:MoisturizingAnti-aging
- The original also hasTamarindus indica seed gumAlcaligenes polysaccharidesSunflower seed oil
- Unlike the original, it hasPalmitoyl dipeptide-5 diaminobutyroyl hydroxythreoninePalmitoyl tripeptide-5Soluble collagen















