FIRMx Collagen Moisturizer
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Peter Thomas Roth FIRMx Collagen Moisturizer scores 8.2/9.8 overall. It ranks highest in low irritation risk (9.5) and hydration efficacy (9.1).
✶ Hero ingredients
One of the most effective humectants
Silicone that smooths and protects
Works on your skin
Score breakdown
Estimated — based on ingredient analysis. Scores refine as user reviews are added.
Scores last verified: July 2026
What makes Peter Thomas Roth FIRMx Collagen Moisturizer stand out
Peter Thomas Roth FIRMx Collagen Moisturizer is an excellent moisturiser with an overall score of 8.2/9.8. Positioned in the premium bracket, it delivers a well-rounded formulation that balances efficacy with gentleness. The formula leads with Glycerin, Dimethicone, Collagen — ingredients that support the skin barrier and moisture levels.
It performs well on hydration (9.1) and low irritation risk (9.5).
Is this right for you?
Great for
- ✓Dry or dehydrated skin — strong moisture-binding profile
- ✓Sensitive skin — low irritation risk with a gentle formulation
- ✓Safety-conscious shoppers — clean formulation with minimal flags
Key ingredients
- ✶Glycerin
Draws in moisture — #2 in the INCI list
- ✶Dimethicone
Softens and smooths — #3 in the INCI list
- ✶Collagen
Works on your skin — #4 in the INCI list
- ✶Caprylic/Capric Triglyceride
Softens and smooths — #5 in the INCI list
- ✶Cetearyl Alcohol
Softens and smooths — #6 in the INCI list
What creators are saying
TikTokBased on these TikTok reviews, users are seeing real tightening and smoothing results from Peter Thomas Roth's FIRMx products, with one reviewer noting visible improvement in under-eye firmness and reduced puffiness after just one use. The reviewers appreciate that the products deliver on their promises to firm and lift skin, though the effects can be subtle and may not show dramatically on camera. These products seem ideal for people looking for temporary skin tightening solutions, particularly around the eye area where signs of aging are most noticeable.
Based on 2 creator reviewsFull ingredient list
24 ingredients — listed in INCI order (highest concentration first)
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Ingredient breakdown
- Softens and smooths6
- Works on your skin6
- Keeps the product fresh4
- Draws in moisture3
- Holds the formula together3
- Other ingredient1
- Formula balancers1