A concentrated oil-minimizing serum from Kiehl's formulated around 5% niacinamide to help reduce shine and refine pores. Lightweight, fast-absorbing gel-serum texture suits combination to oily skin types. Practical for daytime layering or targeted evening use, it focuses on visible oil control and skin tone improvement without heavy residue.
Ingredient Safety
No risk3
Low risk2
Moderate risk2