Niacin
INCI: Nicotinic Acid
Reviewed by Emma · Last updated 18 Aug 2026
Also known as: Niacinamide, Nicotinamide, Vitamin B3
Essential B vitamin supporting skin barrier function
Addresses
EWG Safety Score
What Is Niacin?
Niacin, also known as Vitamin B3 or nicotinic acid, is an essential nutrient that plays vital roles in cellular energy production and skin health. In skincare, it supports the synthesis of ceramides and other barrier lipids essential for healthy skin function.
This water-soluble vitamin helps strengthen the skin barrier, reducing sensitivity and improving moisture retention. It also supports the skin's natural repair processes and helps maintain an even, healthy complexion.
Benefits for Your Skin
Frequently Asked Questions
From the Clinic
Not sure what your skin actually needs?
Two minutes, a few questions, and we’ll point you at what matters — no guesswork.
Take the skin quizOther forms of Niacin
These appear on ingredients lists under different names but are the same substance. Niacin is the common form.
Related Ingredients
Nicotinic Acid
Active B3 form with circulation-boosting properties
Neem Extract or Oil
Ayurvedic powerhouse for problem skin
Nelumbo Nucifera Callus Culture Extract
A plant cell culture extract with antioxidant and soothing properties
Nelumbo Nucifera Seed Extract
A plant extract with antioxidant and conditioning properties, traditionally used in Asian skincare
Niacinamide
Vitamin B3, and one of the easiest actives to live with
Niacinamide Hydroxybenzoate
A niacinamide derivative that provides antioxidant protection and skin conditioning benefits
Learn More About Skincare Ingredients
Explore our comprehensive ingredient glossary to understand what's in your products.
Browse All IngredientsShop Our Products
Find professional skincare solutions at Skintique.