Ultra Pure High-Potency 5.0% Niacinamide Serum

Details

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

Item 2607983

How to use

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.

Ingredients

Aqua/Water, Niacinamide, Glycerin, Propanediol, Methyl Gluceth-20, Hydroxyacetophenone, Sodium Hyaluronate, Caprylyl Glycol, Carbomer, Sodium Hydroxide.