Ingredient or product comparison

Kiehl's Ultra Pure High-Potency 5.0% Niacinamide Serum Versus Good Molecules Hyaluronic Acid Serum

This oil-control serum is formulated around Niacinamide to balance excess oil and refine the look of pores. This hydrating serum is formulated around Sodium Hyaluronate to hydrate skin.

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