Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

Paula's Choice C5 Super Boost Moisturizer Versus Kiehl's Ultra Facial Moisturizer

This brightening moisturizer is formulated around 3-O-Ethyl Ascorbic Acid and Ascorbyl Glucoside to brighten dull-looking skin. This day moisturizer is formulated around Squalene to hydrate skin.

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  • This brightening moisturizer is formulated around 3-O-Ethyl Ascorbic Acid and Ascorbyl Glucoside to brighten dull-looking skin.
  • This day moisturizer is formulated around Squalene to hydrate skin.