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Peter Thomas Roth FIRMx Collagen Moisturizer scores 8.5/9.8 vs Horace Sérum Acide salicylique + Niacinamide at 8.0/9.8. Peter Thomas Roth FIRMx Collagen Moisturizer wins for hydration.
Peter Thomas Roth FIRMx Collagen Moisturizer edges ahead, winning 1 of 5 attributes.
Scores last verified: April 2026
20 unique
22 unique
Where Peter Thomas Roth FIRMx Collagen Moisturizer really shines is hydration efficacy, scoring 9.1 compared to Horace Sérum Acide salicylique + Niacinamide's 5.9. With Glycerin, Sodium Hyaluronate, and Panthenol in its top ingredients, Peter Thomas Roth FIRMx Collagen Moisturizer delivers stronger moisture-binding capability.
Active Ingredient Strength is another area of separation. Horace Sérum Acide salicylique + Niacinamide scores 7.4 here versus 5.9 for Peter Thomas Roth FIRMx Collagen Moisturizer. 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 horace Sérum Acide salicylique + Niacinamide relies on Niacinamide, Zinc Pca, and Salicylic Acid. Both approaches have merit, but the positioning and supporting ingredients make the difference.
Horace Sérum Acide salicylique + Niacinamide is better if you have
Peter Thomas Roth FIRMx Collagen Moisturizer is better if you have
Peter Thomas Roth FIRMx Collagen Moisturizer comes in at premium pricing with a 8.5 score, which is solid value at that tier.
Peter Thomas Roth FIRMx Collagen Moisturizer edges ahead with a slightly stronger formulation, but Horace Sérum Acide salicylique + Niacinamide is still a solid pick.
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.
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