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The Ordinary Power of Peptides Set scores 9.4/9.8 vs Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum at 9.0/9.8. The Ordinary Power of Peptides Set wins for active ingredients.
The Ordinary Power of Peptides Set edges ahead, winning 1 of 5 attributes.
Scores last verified: June 2026
29 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 Retinol Skin-Renewing Daily Micro-Dose Serum's 7.8. Its formula features Acetyl Hexapeptide-8, Pentapeptide-18, and Palmitoyl Tripeptide-1 in high positions, signalling meaningful concentrations.
The Ordinary Power of Peptides Set brings Acetyl Hexapeptide-8, Pentapeptide-18, and Palmitoyl Tripeptide-1 as actives, while kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum 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 Retinol Skin-Renewing Daily Micro-Dose Serum is better if you have
The Ordinary Power of Peptides Set is better if you have
At premium pricing with a score of 9.0, Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum 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 Retinol Skin-Renewing Daily Micro-Dose Serum 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.