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Peter Thomas Roth Peptide Skinjection™ Amplified Wrinkle-Fix Refillable Serum scores 8.3/9.8 and SK-II R.N.A. Power Airy Milky Lotion scores 8.3/9.8 — a near-tie where your skin type decides the winner.
These two are neck and neck — just 0.0 points apart.
Scores last verified: June 2026
23 unique
8 in common
16 unique
These two serums 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 Peptide Skinjection™ Amplified Wrinkle-Fix Refillable Serum scores 9.8 here versus 8.4 for SK-II R.N.A. Power Airy Milky Lotion. That difference comes down to how each formula is built — the ingredient list tells the story.
Peter Thomas Roth Peptide Skinjection™ Amplified Wrinkle-Fix Refillable Serum brings Saccharomyces Lysate, Acetyl Hexapeptide-8, and Pentapeptide-18 as actives, while sK-II R.N.A. Power Airy Milky Lotion relies on Galactomyces Ferment Filtrate, Niacinamide, and Inositol. Both approaches have merit, but the positioning and supporting ingredients make the difference.
Peter Thomas Roth Peptide Skinjection™ Amplified Wrinkle-Fix Refillable Serum is better if you have
SK-II R.N.A. Power Airy Milky Lotion is better if you have
At premium pricing with a score of 8.3, Peter Thomas Roth Peptide Skinjection™ Amplified Wrinkle-Fix Refillable Serum is a decent pick. SK-II R.N.A. Power Airy Milky Lotion sits at the luxury level with a 8.3 score — the extra cost doesn't translate to better scores here.
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 Peptide Skinjection™ Amplified Wrinkle-Fix Refillable 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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© 2026 Gracie. All rights reserved. Data sourced from Open Beauty Facts (ODbL) and EU CosIng.