Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum
- Aqua/Water
- solvent base
- Glycerin
- humectant
- Butylene Glycol
- humectant solvent
- Pentylene Glycol
- humectant solvent
- Niacinamide
- barrier and brightening support
- Cetyl Alcohol
- emollient thickener
- Isohexadecane
- light emollient
- Isononyl Isononanoate
- slip emollient
- Diisopropyl Sebacate
- emollient solvent
- 2-Oleamido-1,3-Octadecanediol
- barrier lipid support
- 4-T-Butylcyclohexanol
- soothing agent
- Acetyl Dipeptide-1 Cetyl Ester
- peptide conditioning
- Adenosine
- anti-aging support
- Ceramide NP
- barrier lipid
- Hydroxypalmitoyl Sphinganine
- ceramide precursor
- Lauroyl Lysine
- texture enhancer
- Octyldodecanol
- emollient alcohol
- Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate
- antioxidant stabilizer
- Sodium Chloride
- viscosity adjuster
- Sodium Hyaluronate
- humectant
- Sodium Hydroxide
- pH adjuster
- Trisodium Ethylenediamine Disuccinate
- chelating agent
- Retinol
- vitamin A active
- Tocopherol
- antioxidant
Aqua/Water, Glycerin, Butylene Glycol, Pentylene Glycol, Niacinamide, Cetyl Alcohol, Isohexadecane, Isononyl Isononanoate, Diisopropyl Sebacate, 2-Oleamido-1,3-Octadecanediol, 4-T-Butylcyclohexanol, Acetyl Dipeptide-1 Cetyl Ester, Adenosine, Ceramide NP, Hydroxypalmitoyl Sphinganine, Lauroyl Lysine, Octyldodecanol, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, Sodium Chloride, Sodium Hyaluronate, Sodium Hydroxide, Trisodium Ethylenediamine Disuccinate, Retinol, Tocopherol, Dicaprylyl Ether, Ammonium Polyacryloyldimethyl Taurate, Behenyl Alcohol, Caprylyl Glycol, Carbomer, Cetearyl Alcohol, Cetearyl Glucoside, Glycine Soja Oil/Soybean Oil, Helianthus Annuus Seed Oil/Sunflower Seed Oil, Hydroxyethylcellulose, Lecithin, Phenethyl Alcohol, Poloxamer 188, Polycaprolactone, Sorbitan Laurate, Steareth-100, CI 40800/Beta-Carotene, Chlorphenesin, Phenoxyethanol
Is Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum worth it?
Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum scores 4.2 out of 5.0 for efficacy (Strong) and 4.2 out of 5.0 for safety (Mostly Safe) on DemythSkin's independent ingredient analysis. This is a legitimately strong retinol serum, not just a marketing exercise. The efficacy score is high because retinol appears in a meaningful late-middle position, but the formula is clearly designed to make it tolerabl
What are the key active ingredients in Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum?
Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum contains these gold-standard actives with strong clinical evidence: Retinol.
Does Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum contain fragrance or known irritants?
DemythSkin's analysis found no flagged irritants in Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum. It scores 4.2 out of 5.0 for safety.
How is Kiehl's Retinol Skin-Renewing Daily Micro-Dose Serum scored?
DemythSkin grades every product on two independent axes: efficacy (whether the ingredients have clinical evidence of working) and safety (irritation and sensitisation risk). Ingredients are classified S through D against a database of over 3,000 compounds. No brand pays for a score.
Analysis last updated: 2026-08-17. DemythSkin is an independent ingredient analyzer. Scores are computed by a deterministic rubric from published clinical evidence — no brand pays for a score.