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Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide scores 8.9/9.8 vs Dr. Althea Dr. Althea 147 Barrier Cream 50ml at 8.3/9.8. Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide wins for active ingredients.
Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide edges ahead, winning 2 of 5 attributes.
Scores last verified: June 2026
42 unique
10 in common
29 unique
Where Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide really shines is active ingredient strength, scoring 7.7 compared to Dr. Althea Dr. Althea 147 Barrier Cream 50ml's 3.5. Its formula features Niacinamide, Acetyl Dipeptide-1 Cetyl Ester, and Adenosine in high positions, signalling meaningful concentrations.
Hydration Efficacy is another area of separation. Dr. Althea Dr. Althea 147 Barrier Cream 50ml 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.
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 dr. Althea Dr. Althea 147 Barrier Cream 50ml relies on Ceramide Np, Artemisia Princeps Leaf Extract, and Persea Gratissima Fruit Extract. Both approaches have merit, but the positioning and supporting ingredients make the difference.
Dr. Althea Dr. Althea 147 Barrier Cream 50ml is better if you have
Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide is better if you have
Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide comes in at premium pricing with a 8.9 score, which is solid value at that tier.
Kiehl's Since 1851 Micro-Dose Anti-Aging Retinol Serum with Ceramides & Peptide edges ahead with a slightly stronger formulation, but Dr. Althea Dr. Althea 147 Barrier Cream 50ml is still a solid pick.
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.
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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