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Summary
Conscious Beauty at Ulta Beauty™
- Vegan
- Clean Ingredients
- Sustainable Packaging Brand
- Give Back
The Kiehl's Since 1851 Ultra Pure High-Potency 5.0% Niacinamide Serum is a concentrated facial serum formulated with just 10 ingredients to help visibly reduce oil and minimize the look of redness.
Benefits
- Free of fragrance and colorants, this concentrated serum is minimally formulated for skin absorption and efficacy
Key Ingredients
- Niacinamide: form of vitamin B3 known to help visibly brighten skin; when used in topical skincare formulas, it can also help balance skin's surface oil
Research Results
- After 1 Week, 92% Agree Skin Feels Soothed* Instantly Reduces Excess Oil by 58%** Reduced Blemishes in 1 Week***
- *Reported by consumers in a 4-week study **Instrumental measurement in a 4-week clinical study ***Expert grading in a 4-week clinical study
In the morning and evening, apply 2-3 drops to clean, dry skin.
Try out Kiehl's Niacinamide Serum skin hacks: Zone treat your face by applying Niacinamide Serum to areas prone to oiliness and breakouts. Follow with your favorite moisturizer where needed. Layer with Kiehl's Hyaluronic Acid Serum to hydrate & rebalance skin's moisture. Layer with Kiehl's Glycolic Acid Serum to gently exfoliate & improve texture.
Aqua/Water, Niacinamide, Glycerin, Propanediol, Methyl Gluceth-20, Hydroxyacetophenone, Sodium Hyaluronate, Caprylyl Glycol, Carbomer, Sodium Hydroxide.
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Free gift with purchase
Free gift with purchase
Free Crème De Corps body moisturizer with $45 Kiehl's Since 1851 purchase (valid thru 5/11/25 on shipped purchases only. Full or partial pickup or same day delivery purchases do not qualify. While quantities last)
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Questions
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Reviews
Write A REVIEWReview Snapshot
by PowerReviews
Ratings Distribution
Skin Type
- 1Combination
Most Helpful Positive Review
Oil control
This also was for oily skin. Seems to be working well
Most Helpful Critical Review
Don't love it, BUT I don't hate it
I've been using Kiehl's Ultra-Pure High-Potency Serum 5% Niacinamide for almost a month now, and I cannot necessarily tell that I've been using it. For starters, I have combination skin that tends to be more oily in my t-zone and forehead. In my skincare routine, I use this after my toner and before...
662 results
Love this expensive little bottle
The price is the only con. It doesn't trigger my eczema or dry out or aggravate my super sensitive skin. It heals my acne and stops new acne scars from forming. It's amazing how fast it can make a pimple dissapear. I'd gladly take an endless supply of this.
Good Product
Verified Reviewer
Reviewed at
Good Product. I am very happy to have this product.
Helps oily skin!
Verified Reviewer
Reviewed at
I love using this first for my daily routine. It helps regulate my oily skin during the day!
HOLYY GRAILLLL
i would absolutely recommend this product to anyone!! this worked wonders on my skin helped me with my acne that wasn't going away, thought id try it out and im hooked. Even though it's expensive for the price its totally worth it
Shine, Be Gone!
This product delivers anti-shine benefits immediately. My typically combination type skin has become VERY oily and acne-prone recently thanks to perimenopause, so I am thrilled to have found something that instantly balances my skin. I think it is also helping clear my acne. I apply moisturizer after, and my skin is smooth and without all that gross shine!
