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Medicube Deep Vita A Retinol Serum scores 8.9/9.8 vs Peter Thomas Roth FIRMx Collagen Moisturizer at 8.5/9.8. Medicube Deep Vita A Retinol Serum wins for active ingredients.
Medicube Deep Vita A Retinol Serum edges ahead, winning 3 of 5 attributes.
Scores last verified: April 2026
45 unique
8 in common
16 unique
Where Medicube Deep Vita A Retinol Serum really shines is active ingredient strength, scoring 6.7 compared to Peter Thomas Roth FIRMx Collagen Moisturizer's 5.9. Its formula features Niacinamide, Allantoin, and Dipotassium Glycyrrhizate in high positions, signalling meaningful concentrations.
Hydration Efficacy is another area of separation. Medicube Deep Vita A Retinol Serum scores 9.8 here versus 9.1 for Peter Thomas Roth FIRMx Collagen Moisturizer. That difference comes down to how each formula is built — the ingredient list tells the story.
Medicube Deep Vita A Retinol Serum brings Niacinamide, Allantoin, and Dipotassium Glycyrrhizate as actives, while peter Thomas Roth FIRMx Collagen Moisturizer relies on Collagen, Niacinamide, and Palmitoyl Tripeptide-1. Both approaches have merit, but the positioning and supporting ingredients make the difference.
Medicube Deep Vita A Retinol Serum 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.
Medicube Deep Vita A Retinol Serum edges ahead with a slightly stronger formulation, but Peter Thomas Roth FIRMx Collagen Moisturizer is still a solid pick.
Based on ingredient analysis, Medicube Deep Vita A Retinol Serum 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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