Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide vs The Ordinary Multi-Peptide + Hyaluronic Acid Serum for Firmness and Elasticity
Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide scores 9.3/9.8 vs The Ordinary Multi-Peptide + Hyaluronic Acid Serum for Firmness and Elasticity at 8.7/9.8. Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide wins for hydration.
Head to head
Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide
Multi-Peptide + Hyaluronic Acid Serum for Firmness and Elasticity
Score comparison
Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide edges ahead, winning 1 of 5 attributes.
Scores last verified: July 2026
Attribute battle
Hydration Efficacy
Kiehl's Since 1851 WINSIrritation Risk
TIEActive Ingredient Strength
The Ordinary WINSIngredient Transparency
TIEFormulation Safety
TIEIngredient face-off
23% overlapOnly in Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide
28 unique
Shared ingredients
11 in common
Only in The Ordinary Multi-Peptide + Hyaluronic Acid Serum for Firmness and Elasticity
36 unique
Why Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide comes out ahead
Where Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide really shines is hydration efficacy, scoring 9.4 compared to The Ordinary Multi-Peptide + Hyaluronic Acid Serum for Firmness and Elasticity's 8.6. With Glycerin, Butylene Glycol, and Pentylene Glycol in its top ingredients, Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide delivers stronger moisture-binding capability.
Active Ingredient Strength is another area of separation. The Ordinary Multi-Peptide + Hyaluronic Acid Serum for Firmness and Elasticity scores 8.4 here versus 7.7 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.
Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide brings Niacinamide, Acetyl Dipeptide-1 Cetyl Ester, and Adenosine as actives, while the Ordinary Multi-Peptide + Hyaluronic Acid Serum for Firmness and Elasticity relies on Acetyl Hexapeptide-8, Pentapeptide-18, and Palmitoyl Tripeptide-1. Both approaches have merit, but the positioning and supporting ingredients make the difference.
Best for your skin type
Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide is better if you have
- Sensitive skin — the low-irritation formula keeps things gentle
- Dry or dehydrated skin that craves moisture, thanks to Glycerin
- Targeting specific concerns like aging or uneven tone — Niacinamide does the heavy lifting
The Ordinary Multi-Peptide + Hyaluronic Acid Serum for Firmness and Elasticity is better if you have
- Sensitive skin — the low-irritation formula keeps things gentle
- Dry or dehydrated skin that craves moisture, thanks to Glycerin
- Targeting specific concerns like aging or uneven tone — Acetyl Hexapeptide-8 does the heavy lifting
Value comparison
At premium pricing with a score of 9.3, Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide delivers strong value. The Ordinary Multi-Peptide + Hyaluronic Acid Serum for Firmness and Elasticity sits at the mid-range level with a 8.7 score — the extra cost doesn't translate to better scores here.
Our verdict
Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide edges ahead with a slightly stronger formulation, but The Ordinary Multi-Peptide + Hyaluronic Acid Serum for Firmness and Elasticity is still a solid pick.
Frequently asked questions
Which is better: Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide or The Ordinary Multi-Peptide + Hyaluronic Acid Serum for Firmness and Elasticity?
Based on ingredient analysis, Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide scores higher overall. See the full score breakdown above for details on each attribute.
Do Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide and The Ordinary Multi-Peptide + Hyaluronic Acid Serum for Firmness and Elasticity share ingredients?
Yes, they share common ingredients. Check the ingredient face-off section above for a detailed comparison.
What's the main difference between Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide and The Ordinary Multi-Peptide + Hyaluronic Acid Serum for Firmness and Elasticity?
The key differences are in their active ingredients and formulation approach. Check the attribute battle above for a detailed breakdown.