
Peter Thomas Roth
Firm X Collagen Serum
55%
Medium match
Low irritancy
3/12
key actives shared
1/1
hero shared
17%
of the original's ingredients
Why it's a dupe
- Both are serums.
- Same hero ingredients:Acetyl tetrapeptide-2
- Both contain:GlycerinDimethicone
- Both contain peptides.
- Both work for:MoisturizingAnti-aging
- The original also hasTriheptanoinMethyl gluceth-20Jojoba oil
- Unlike the original, it hasPalmitoyl dipeptide-5 diaminobutyroyl hydroxythreoninePalmitoyl tripeptide-5Squalane



















