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Anua Niacinamide 10% + TXA 4% Serum scores 8.8/9.8 and Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum scores 9.0/9.8 — a near-tie where your skin type decides the winner.
These two are neck and neck — just 0.2 points apart.
Scores last verified: April 2026
33 unique
6 in common
36 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.
Active Ingredient Strength is another area of separation. Anua Niacinamide 10% + TXA 4% Serum scores 8.5 here versus 7.8 for Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum. That difference comes down to how each formula is built — the ingredient list tells the story.
Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum brings Niacinamide, Acetyl Dipeptide-1 Cetyl Ester, and Adenosine as actives, while anua Niacinamide 10% + TXA 4% Serum relies on Niacinamide, Tranexamic Acid, and Alpha-Arbutin. Both approaches have merit, but the positioning and supporting ingredients make the difference.
Anua Niacinamide 10% + TXA 4% Serum is better if you have
Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum is better if you have
At budget pricing with a score of 8.8, Anua Niacinamide 10% + TXA 4% Serum is a decent pick. Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum sits at the premium level with a 9.0 score — the higher investment pays off in formulation quality.
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, Kiehl's Retinol Skin-Renewing Daily Micro-Dose 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.