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Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum scores 8.9/9.8 vs ALPYN Clarifying Cleanser with Glycolic Acid for Pores & Blackheads at 8.4/9.8. Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum wins for hydration.
Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum edges ahead, winning 3 of 5 attributes.
Scores last verified: June 2026
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Where Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum really shines is hydration efficacy, scoring 9.6 compared to ALPYN Clarifying Cleanser with Glycolic Acid for Pores & Blackheads's 5.7. With Glycerin, Butylene Glycol, and Pentylene Glycol in its top ingredients, Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum delivers stronger moisture-binding capability.
Active Ingredient Strength is another area of separation. Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum scores 7.8 here versus 5.8 for ALPYN Clarifying Cleanser with Glycolic Acid for Pores & Blackheads. 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 aLPYN Clarifying Cleanser with Glycolic Acid for Pores & Blackheads relies on Hamamelis Virginiana (Witch Hazel) Water, Carica Papaya (Papaya) Fruit Extract, and Lactic Acid. Both approaches have merit, but the positioning and supporting ingredients make the difference.
ALPYN Clarifying Cleanser with Glycolic Acid for Pores & Blackheads is better if you have
Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum is better if you have
At mid-range pricing with a score of 8.4, ALPYN Clarifying Cleanser with Glycolic Acid for Pores & Blackheads is a decent pick. Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum sits at the premium level with a 8.9 score — the higher investment pays off in formulation quality.
Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum edges ahead with a slightly stronger formulation, but ALPYN Clarifying Cleanser with Glycolic Acid for Pores & Blackheads is still a solid pick.
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.
Honest skincare intel. No jargon, no gatekeeping — just the ingredients decoded.
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© 2026 Gracie. All rights reserved. Data sourced from Open Beauty Facts (ODbL) and EU CosIng.