
Peter Thomas Roth
Firm X Collagen Serum
29%
Low match
Low irritancy
4/5
key actives shared
33%
of the original's ingredients
Why it's a dupe
- Both contain:SqualaneSodium hyaluronateHydrolyzed collagenGlycerin
- Both work for:Moisturizing
- The original also hasHydrolyzed silk
- Unlike the original, it hasPalmitoyl dipeptide-5 diaminobutyroyl hydroxythreoninePalmitoyl tripeptide-5Acetyl tetrapeptide-2
- It also works for:Anti-aging




















