
Peter Thomas Roth
Firm X Collagen Serum
48%
Medium match
Low irritancy
3/7
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:Sodium hyaluronateGlycerin
- Both contain peptides.
- Both work for:Anti-agingMoisturizing
- The original also hasBetaineButyrospermum parkii butterGlucose
- Unlike the original, it hasPalmitoyl dipeptide-5 diaminobutyroyl hydroxythreoninePalmitoyl tripeptide-5Squalane









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