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Peter Thomas Roth FIRMx Collagen Moisturizer scores 8.5/9.8 vs Isntree C-Niacin Toning Ampoule at 8.1/9.8. Peter Thomas Roth FIRMx Collagen Moisturizer wins for active ingredients.
Peter Thomas Roth FIRMx Collagen Moisturizer edges ahead, winning 2 of 5 attributes.
Scores last verified: April 2026
21 unique
19 unique
Where Peter Thomas Roth FIRMx Collagen Moisturizer really shines is active ingredient strength, scoring 5.9 compared to Isntree C-Niacin Toning Ampoule's 4.7. Its formula features Collagen, Niacinamide, and Palmitoyl Tripeptide-1 in high positions, signalling meaningful concentrations.
Hydration Efficacy is another area of separation. Peter Thomas Roth FIRMx Collagen Moisturizer scores 9.1 here versus 8.5 for Isntree C-Niacin Toning Ampoule. 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 isntree C-Niacin Toning Ampoule relies on Niacinamide, Melia Azadirachta Flower Extract, and Melia Azadirachta Leaf Extract. Both approaches have merit, but the positioning and supporting ingredients make the difference.
Isntree C-Niacin Toning Ampoule is better if you have
Peter Thomas Roth FIRMx Collagen Moisturizer is better if you have
At budget pricing with a score of 8.1, Isntree C-Niacin Toning Ampoule is a decent pick. Peter Thomas Roth FIRMx Collagen Moisturizer sits at the premium level with a 8.5 score — the higher investment pays off in formulation quality.
Peter Thomas Roth FIRMx Collagen Moisturizer edges ahead with a slightly stronger formulation, but Isntree C-Niacin Toning Ampoule 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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© 2026 Gracie. All rights reserved. Data sourced from Open Beauty Facts (ODbL) and EU CosIng.