Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

Alpha-H Liquid Gold Midnight Reboot Serum Versus Kiehl's Micro-Dose Anti-Aging Retinol Serum with Ceramides and Peptide

This smoothing serum is formulated around Glycolic Acid and Hydroxypinacolone Retinoate to refine skin texture and soften the look of wrinkles. This anti-aging serum is formulated around Niacinamide and Ceramide NP to soften the look of wrinkles and refine ski

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  • This smoothing serum is formulated around Glycolic Acid and Hydroxypinacolone Retinoate to refine skin texture and soften the look of wrinkles.
  • This anti-aging serum is formulated around Niacinamide and Ceramide NP to soften the look of wrinkles and refine skin texture.