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Peter Thomas Roth FirmX Collagen Serum

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 Deliver every month

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7 forms of Collagen and collagen-supporting ingredients help skin appear firmer and smoother.


Marine Collagen, Plant Collagen and Hydrolyzed Collagen help improve the look of fine lines, wrinkles, firmness and elasticity while Hydroxyproline, Peptides, Collagen Amino Acids and Fatty Acids help boost results. Helps fight the look of sagginess with 2% Uplevity™ Tetrapeptide while 5% Hyaluronic Acid Complex and Squalane leave skin feeling hydrated and supple.

Dry, Normal, Oily, Combination, Mature

Anti-Aging, Dryness

Vegetable Collagen Water/Aqua/Eau Dimethicone Butylene Glycol Polysilicone-11 Glycerin Caffeine Squalane Soluble Collagen Collagen Amino Acids Hydrolyzed Collagen Palmitoyl Dipeptide-5 Diaminobutyroyl Hydroxythreonine Palmitoyl Tripeptide-5 Acetyl Tetrapeptide-2 Sodium Hyaluronate Hydroxyproline Sodium Citrate Citric Acid Acrylamide/Sodium Acryloyldimethyltaurate Copolymer Ammonium Acrylolydimethyltaurate/VP Copolymer Hydroxystearic Acid Magnesium Chloride Polysorbate 20 Polysorbate 80 Sodium Hydroxide Sorbitan Isostearate Decyl Glucoside Lauryl Glucoside Tetradecyl Aminobutyroylvalylaminobutyric Urea Trifluoroacetate Leuconostoc/Radish Root Ferment Filtrate Disodium EDTA Potassium Sorbate Sodium Benzoate Isohexadecane Ethylhexylglycerin Hexylene Glycol Caprylyl Glycol Phenoxyethanol Mica (CI 77019)

30 ml

Customer Reviews

Based on 7 reviews
Mergie M.

This serum is amazing! In just two days there is a noticeable difference in the lines in my face. I’m 72 years old. Have always tried to take care of my skin, and I’ve never seen a result so fast! Love this Serum!


I bought this serum because I’ve loved so many PTR products and always found them to be very effective. This serum feels like silk when it goes on my skin. It literally melts in and leaves a smooth finish on my face. It sort of blurs all my fine lines.


I've been using this for a week and it already seems to be helping plump and firm my 42 yo skin. Will be using this from now on