
Peter Thomas Roth
Firm X Collagen Serum
39%
Low match
Low irritancy
2/2
key actives shared
71%
of the original's ingredients
Why it's a dupe
- Both are serums.
- Both contain:Soluble collagenHydrolyzed collagen
- Both work for:Moisturizing
- Unlike the original, it hasPalmitoyl dipeptide-5 diaminobutyroyl hydroxythreoninePalmitoyl tripeptide-5Acetyl tetrapeptide-2
- It also works for:Anti-aging



















