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The Ordinary Power of Peptides Set scores 9.4/9.8 vs Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide at 8.9/9.8. The Ordinary Power of Peptides Set wins for active ingredients.
The Ordinary Power of Peptides Set edges ahead, winning 2 of 5 attributes.
Scores last verified: June 2026
26 unique
13 in common
62 unique
Where The Ordinary Power of Peptides Set really shines is active ingredient strength, scoring 9.8 compared to Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide's 7.7. Its formula features Acetyl Hexapeptide-8, Pentapeptide-18, and Palmitoyl Tripeptide-1 in high positions, signalling meaningful concentrations.
Hydration Efficacy is another area of separation. The Ordinary Power of Peptides Set scores 9.8 here versus 9.4 for Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide. That difference comes down to how each formula is built — the ingredient list tells the story.
The Ordinary Power of Peptides Set brings Acetyl Hexapeptide-8, Pentapeptide-18, and Palmitoyl Tripeptide-1 as actives, while kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide relies on Niacinamide, Acetyl Dipeptide-1 Cetyl Ester, and Adenosine. Both approaches have merit, but the positioning and supporting ingredients make the difference.
Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide is better if you have
The Ordinary Power of Peptides Set is better if you have
At premium pricing with a score of 8.9, Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide is a decent pick. The Ordinary Power of Peptides Set sits at the mid-range level with a 9.4 score — the higher investment pays off in formulation quality.
The Ordinary Power of Peptides Set edges ahead with a slightly stronger formulation, but Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide is still a solid pick.
Based on ingredient analysis, The Ordinary Power of Peptides Set 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.