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Kiehl's oil-minimizing Niacinamide Serum is formulated with only 10 ingredients to help reduce the appearance of excess oil and the look of redness. Concentrated with 5% Niacinamide, our potent formula helps to visibly minimize shine and soothe skin with moisture.
Formulated to help visibly minimize shine and soothe skin with moisture
Reduces the appearance of excess oil on skin
Visibly reduces the look of redness
Visibly reduces redness
Suitable for all skin types, including sensitive
Formulated without added fragrance and colorants
Our Niacinamide serum for oily skin visibly reduces surface oil and shine, and improves the look of smooth and even skin.
Instantly Reduces Excess Oil by 58%*
After 1 Week, 92% Agree Skin Feels Soothed**
*Instrumental measurement in a 4-week clinical study.
**Reported by consumers in a 4-week study.
***Expert grading in a 4-week clinical study.
Niacinamide
Niacinamide, the form of Vitamin B3 used within our formulas, is known to help visibly brighten skin. When used in topical skincare formulas, Niacinamide can also help balance skin’s surface oil.
Apply 2-3 drops of Niacinamide Serum to clean, dry skin in the morning and evening.
Before And After Ultra Pure High-Potency Serum Niacinamide
Before and After
Our Niacinamide facial serum for oily skin visibly reduces surface oil and shine, and improves the look of smooth and even skin:
Instantly Reduces Excess Oil by 58%*
After 1 Week, 92% Agree Skin Feels Soothed**
Reduced Blemishes in 1 Week***
*Instrumental measurement in a 4-week clinical study.
**Reported by consumers in a 4-week study.
***Expert grading in a 4-week clinical study.
PDP Routine Section
Complete Your Routine
Discover efficacious formulas to upgrade your routine.
Minimally formulated with only 10 ingredients, our concentrated 5% Niacinamide serum has a fast-absorbing texture allows actives to be rapidly delivered into the skin to visibly reduce excess oil and provide targeted efficacy for your top skin concerns.
Product Comparison Table
Find Your Formula
Ultra Pure High-Potency 5.0% Niacinamide Serum
Ultra Pure High-Potency 9.8% Glycolic Acid Serum
Ultra Pure High-Potency 1.5% Hyaluronic Acid Serum
Skin Type All Types Dry Oily Combination Normal Sensitive
Skin Type All Types Dry Oily Combination Normal Sensitive
Skin Type All Types Dry Oily Combination Sensitive Normal
Skin Concern Uneven Skin Tone Blemishes Oily Skin / Acne
Skin Concern Enlarged Pores Uneven Skin Tone Tone & Texture Dull Skin
Skin Concern Dryness
Size
One size only for Ultra Pure High-Potency 5.0% Niacinamide Serum
1.0 fl oz / 30 ml
Size
One size only for Ultra Pure High-Potency 9.8% Glycolic Acid Serum
1.0 fl oz / 30 ml
Size
One size only for Ultra Pure High-Potency 1.5% Hyaluronic Acid Serum
1.0 fl oz / 30 ml
Price
Old priceNew price$40.00
Price
Old priceNew price$40.00
Price
Old priceNew price$40.00
Expert Advice
Expert Advice
“We wanted to deliver known skin actives, such as Niacinamide, Glycolic Acid and Hyaluronic Acid in their pure form in simple formulations without too many ingredients to deliver efficacy, layer well into a skin regimen and allow users to customize their skin care according to their needs. The simplified formulas ensure the ingredients absorb fully into the skin. Our Ultra Pure High-Potency Serum 5% Niacinamide helps reduce excessive sebum, visible redness, and the appearance of blemishes.”
Kiehl’s Global Scientific Director Dr. Nancy Ilaya PhD
PDP Section FAQs WW0237KIE
Frequently Asked Questions
What is Niacinamide?
Niacinamide is one of the most common and well-studied form of Vitamin B3 used in cosmetic products. It is a low molecular weight, water-soluble vitamin that is crucial to the energy, repair, and homeostasis of cells.
What does a Niacinamide serum do for the skin?
Serums are a way to introduce ingredients to the skin in a lighter-weight, more concentrated format – in this instance: Niacinamide. Niacinamide is a water-soluble format of Vitamin B3 and has a multitude of benefits when applied topically. By placing this ingredient in a serum format, it allows the ingredient to be delivered directly to the skin at a concentration which will provide strong, beneficial effects.
What are the benefits of Niacinamide?
Niacinamide serums offer a wide array of benefits. Studies have shown that Niacinamide has the potential to act as an antioxidant, can improve skin’s barrier function, decrease skin hyperpigmentation, reduce fine lines and wrinkles, decrease redness/blotchiness, decrease skin yellowness (sallowness), and improve skin elasticity.
Can you use a Niacinamide serum every day?
Yes. Our Niacinamide Pure Serum may be used every day. Because Niacinamide is an active ingredient, it is recommended that you start slowly when pairing with other active ingredients to avoid sensitization.
Can a Niacinamide serum help acne?
Niacinamide has been found to be highly beneficial to those who are acne prone. It helps to regulate sebum production in the skin which, over time, can help reduce the number of breakouts. Additionally, Niacinamide is anti-inflammatory which can address active acne marks by calming and soothing irritation and redness. Lastly, because of its ability to regulate skin tone, it can address red and brown post-acne spots.
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