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Peter Thomas Roth FIRMx Collagen Moisturizer scores 8.5/9.8 vs SK-II Skinpower Airy Milky Lotion at 8.0/9.8. Peter Thomas Roth FIRMx Collagen Moisturizer wins for active ingredients.
Peter Thomas Roth FIRMx Collagen Moisturizer edges ahead, winning 3 of 5 attributes.
Scores last verified: April 2026
17 unique
7 in common
36 unique
Where Peter Thomas Roth FIRMx Collagen Moisturizer really shines is active ingredient strength, scoring 5.9 compared to SK-II Skinpower Airy Milky Lotion's 4.1. Its formula features Collagen, Niacinamide, and Palmitoyl Tripeptide-1 in high positions, signalling meaningful concentrations.
Formulation Safety is another area of separation. Peter Thomas Roth FIRMx Collagen Moisturizer scores 9.0 here versus 8.0 for SK-II Skinpower Airy Milky Lotion. 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 sK-II Skinpower Airy Milky Lotion relies on Niacinamide, Tocopheryl Acetate, and Paeonia Albiflora Root Extract. Both approaches have merit, but the positioning and supporting ingredients make the difference.
Peter Thomas Roth FIRMx Collagen Moisturizer is better if you have
SK-II Skinpower Airy Milky Lotion is better if you have
At premium pricing with a score of 8.5, Peter Thomas Roth FIRMx Collagen Moisturizer delivers strong value. SK-II Skinpower Airy Milky Lotion sits at the luxury level with a 8.0 score — the extra cost doesn't translate to better scores here.
Peter Thomas Roth FIRMx Collagen Moisturizer edges ahead with a slightly stronger formulation, but SK-II Skinpower Airy Milky Lotion 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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