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Peter Thomas Roth FirmX Collagen Moisturizer 1.7 fl oz
In-store pricing snapshot
Last known warehouse price · Jul 6, 2026. Currently out of stock.
* Prices shown are for Costco members only.
The Peter Thomas Roth FirmX Collagen Moisturizer is an advanced anti-aging face cream formulated with five forms of collagen and two collagen-supporting ingredients to help visibly firm and smooth skin. As the skin's natural collagen diminishes with age, this intensive moisturizer works to rebuild and reinforce the skin's collagen supply, reducing the appearance of fine lines, wrinkles, and sagging around the face and neck.
The formula features vegetable collagen, hydrolyzed collagen, soluble collagen, collagen amino acids, and hydroxyproline, alongside peptide complexes including Palmitoyl Tripeptide-5 and Palmitoyl Dipeptide-5 Diaminobutyroyl Hydroxythreonine to stimulate collagen production. Sodium hyaluronate provides deep hydration by attracting and locking in moisture, while squalane—a naturally derived antioxidant oil—supports the skin's moisture barrier and helps prevent water loss throughout the day. Caffeine is also included for its antioxidant and skin-toning properties.
Apply twice daily to a cleansed face and neck. Suitable for mature skin types with anti-aging concerns. For external use only.