Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

Shiseido Ultimune Power Infusing Serum Concentrate Versus Kiehl's Micro-Dose Anti-Aging Retinol Serum with Ceramides and Peptide

This barrier-repair serum is formulated around Trehalose to strengthen the skin barrier 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.

This source-based comparison does not add ratings or recommend a winner.

  • This barrier-repair serum is formulated around Trehalose to strengthen the skin barrier 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.