Loading...
Peter Thomas Roth FIRMx Collagen Moisturizer scores 8.5/9.8 and StriVectin Super-C Retinol Brighten & Correct Vitamin C Serum scores 8.4/9.8 — a near-tie where your skin type decides the winner.
These two are neck and neck — just 0.1 points apart.
Scores last verified: June 2026
19 unique
5 in common
36 unique
These two moisturisers take different paths to a similar destination. Both formulas include solid hydrating ingredients, and the overall scores reflect that — the gap here is genuinely slim.
Hydration Efficacy is another area of separation. Peter Thomas Roth FIRMx Collagen Moisturizer scores 9.1 here versus 5.8 for StriVectin Super-C Retinol Brighten & Correct Vitamin C Serum. That difference comes down to how each formula is built — the ingredient list tells the story.
Peter Thomas Roth FIRMx Collagen Moisturizer brings Collagen, Niacinamide, and Palmitoyl Tripeptide-1 as actives, while striVectin Super-C Retinol Brighten & Correct Vitamin C Serum relies on Sodium Ascorbyl Phosphate, Ascorbyl Glucoside, and Ascorbic Acid. Both approaches have merit, but the positioning and supporting ingredients make the difference.
Peter Thomas Roth FIRMx Collagen Moisturizer is better if you have
StriVectin Super-C Retinol Brighten & Correct Vitamin C Serum is better if you have
Both sit in the premium bracket, so value comes down to formulation quality. Peter Thomas Roth FIRMx Collagen Moisturizer gets the nod here with its 8.5 overall score — you're getting more for a similar outlay.
It's a close call — both products score within 0.3 points of each other. Your choice depends on your specific skin concerns.
Based on ingredient analysis, Peter Thomas Roth FIRMx Collagen Moisturizer scores higher overall. See the full score breakdown above for details on each attribute.
Yes, they share common ingredients. Check the ingredient face-off section above for a detailed comparison.
The key differences are in their active ingredients and formulation approach. Check the attribute battle above for a detailed breakdown.
We may earn a commission from purchases made through our links, at no extra cost to you. This helps us keep Gracie free and independent.
Some links on this site are affiliate links. We may earn a commission from purchases made through our links, at no extra cost to you. This helps us keep Gracie free and independent.
© 2026 Gracie. All rights reserved. Data sourced from Open Beauty Facts (ODbL) and EU CosIng.