Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

Kiehl's Micro-Dose Anti-Aging Retinol Serum with Ceramides and Peptide Versus Kiehl's Nightly Refining Micro-Peel Concentrate

This anti-aging serum is formulated around Niacinamide and Ceramide NP to soften the look of wrinkles and refine skin texture. This brightening serum is formulated around Chenopodium Quinoa Seed Extract and Phytic Acid to brighten dull-looking skin.

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  • This anti-aging serum is formulated around Niacinamide and Ceramide NP to soften the look of wrinkles and refine skin texture.
  • This brightening serum is formulated around Chenopodium Quinoa Seed Extract and Phytic Acid to brighten dull-looking skin.