
Peter Thomas Roth
Firm X Collagen Serum
55%
Medium match
Low irritancy
4/9
key actives shared
2/2
heroes shared
36%
of the original's ingredients
Why it's a dupe
- Both are serums.
- Same hero ingredients:Palmitoyl tripeptide-5Acetyl tetrapeptide-2
- Both contain:Sodium hyaluronateGlycerin
- Both contain peptides.
- Both work for:MoisturizingAnti-aging
- The original also hasSaccharide isomerateOrnithinePhospholipids
- Unlike the original, it hasPalmitoyl dipeptide-5 diaminobutyroyl hydroxythreonineSqualaneSoluble collagen



















