Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

Paula's Choice C15 Super Booster Versus Kiehl's Vital Skin-Strengthening Hyaluronic Acid Super Serum

This brightening serum is formulated around Ascorbic Acid and Ferulic Acid to brighten dull-looking skin and soften the look of wrinkles. This hydrating serum is formulated around Schisandra Chinensis Fruit Extract and Panax Ginseng Root Extract to hydrate ski

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  • This brightening serum is formulated around Ascorbic Acid and Ferulic Acid to brighten dull-looking skin and soften the look of wrinkles.
  • This hydrating serum is formulated around Schisandra Chinensis Fruit Extract and Panax Ginseng Root Extract to hydrate skin.