Ultra Pure High-Potency 5.0% Niacinamide Serum - SSER NIACNMIDE 4 SRM 30ML 1.0OZBenefitsFree of fragrance and colorants, this concentrated serum is minimally formulated for skin absorption and efficacyKey IngredientsNiacinamide: form of vitamin B3 known to help visibly brighten skin; when used in topical skincare formulas, it can also help balance skin's surface oilResearch ResultsAfter 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 - Ultra Pure High-Potency 5.0% Niacinamide Serum