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Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum scores 9.0/9.8 vs Drunk Elephant C-Firma™ Vitamin C Day Serum at 7.9/9.8. Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum wins for hydration.
Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum takes this one, winning 2 of 5 attributes.
Scores last verified: April 2026
37 unique
10 in common
32 unique
Where Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum really shines is hydration efficacy, scoring 9.6 compared to Drunk Elephant C-Firma™ Vitamin C Day Serum's 6.4. 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 6.2 for Drunk Elephant C-Firma™ Vitamin C Day 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 drunk Elephant C-Firma™ Vitamin C Day Serum relies on Ascorbic Acid, Lactobacillus/Pumpkin Ferment Extract, and Dipotassium Glycyrrhizate. Both approaches have merit, but the positioning and supporting ingredients make the difference.
Drunk Elephant C-Firma™ Vitamin C Day 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 wins this comparison with a meaningfully stronger ingredient profile and overall score.
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.