Kiehl'sUltra Pure High-Potency 5.0% Niacinamide Serum, Concentrated Face Serum for Oily Skin, Reduces Excess Oil and Shine, Helps Minimize Imperfections for a Natural Glow, Paraben-Free - 1 fl ozCradle to Cradle CertifiedCradle to Cradle CertifiedCradle to Cradle Certified

This Kiehl’s Niacinamide Serum is a must-have if you have oily or combination skin! It’s super lightweight, absorbs instantly, and noticeably reduces excess oil and shine throughout the day. My skin looks more balanced, and my pores appear smaller and smoother after just a couple of weeks of consistent use.I love that it’s paraben-free and made with only the essentials—no irritation, no heaviness, just clean, concentrated results. It layers beautifully under moisturizer and makeup, and I’ve noticed a real improvement in overall clarity and tone.If you’re dealing with oily skin, breakouts, or dullness, give this a try. It gives that healthy, natural glow without the grease!

I just moved from TX to CO and I kept breaking out. I thought it was because of how dry Colorado was, and I kept moisturizing all that I can. I never thought in my early 30s I would breakout this much. So I did some research and was told how Niacinaminde helps with oily skin. I been using this for few months now and I can clearly see the results. My sebaceous pimples are gone and my skin isnt as oily or breaking out as much! I like how it’s only 5% because I do have sensitive skin!

Ive been using this serum for 2 years now and its been lifesaving for my oily sensitive skin. What makes it amazing? The low amount of ingredients in this product makes this item amazing. As someone who lives in florida this is the best serum for oily skin.

This serum compliments my three-step regimen with a moisturizer and SPF. My skin never looked better without appearing oily but more defined.

Very hydrating. Helped easy dryness from using retinol. Love the packaging glass bottle. Made my skin feel soft and is a bit thicker than the ordinary niacinamide but with the money for evening my skin tone.

I tried this because of 2 reasons. 1 my makeup was melting due to menopause. 2nd was because I wear a mask. It helped my pores some so my makeup didnt get clogged in them.

I love that this is not sticky absorbs well and has no scent whatsoever. Layers with other serums and can be worn under make up.

I bought it for a long time, but I kept it and didn't have time to use it. I started using it for the first time yesterday, and I fell in love with the texture and taste of this product. After twelve hours of use, the face still retains enough moisture. Great product!