Kiehl's Micro-Dose Anti-Aging Retinol Serum blends low-dose retinol with ceramide and peptide support in a fast-absorbing, silky serum. Designed for those targeting fine lines and uneven texture, it suits skin transitioning into active retinoid use and can layer under moisturizers. The formula aims to deliver gradual renewal with minimal irritation while supporting skin barrier resilience.
Ingredient Safety
No risk5
Low risk37
Moderate risk1