Loading...
Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum scores 9.0/9.8 vs Dr. Althea Vitamin C Boosting Serum at 8.1/9.8. Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum wins for hydration.
Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum edges ahead, winning 2 of 5 attributes.
Scores last verified: April 2026
30 unique
6 in common
36 unique
Where Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum really shines is hydration efficacy, scoring 9.6 compared to Dr. Althea Vitamin C Boosting Serum's 6.5. 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 6.8 for Dr. Althea Vitamin C Boosting 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 dr. Althea Vitamin C Boosting Serum relies on Niacinamide, Dipotassium Glycyrrhizate, and Adenosine. Both approaches have merit, but the positioning and supporting ingredients make the difference.
Dr. Althea Vitamin C Boosting Serum is better if you have
Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum is better if you have
Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum comes in at premium pricing with a 9.0 score, which is solid value at that tier.
Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum edges ahead with a slightly stronger formulation, but Dr. Althea Vitamin C Boosting Serum 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.
Some links on this site are affiliate links. We may earn a commission from purchases made through our links, at no extra cost to you. This helps us keep Gracie free and independent.
© 2026 Gracie. All rights reserved. Data sourced from Open Beauty Facts (ODbL) and EU CosIng.