Nicotinic Acid
INCI: Niacin
Reviewed by Emma · Last updated 18 Aug 2026
Also known as: Niacinamide, Nicotinamide, Vitamin B3
Active B3 form with circulation-boosting properties
Addresses
EWG Safety Score
What Is Nicotinic Acid?
Nicotinic Acid is the acidic form of Vitamin B3, distinct from its amide counterpart nicotinamide. While both forms support skin health, nicotinic acid can cause a temporary flushing reaction due to its vasodilatory effects on blood vessels.
This form of B3 may enhance circulation to the skin and support cellular energy production. In properly formulated products at appropriate concentrations, it contributes to overall skin vitality and health without causing uncomfortable flushing.
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Nicotinic Acid is a variant of Niacin, the form you will most often see on an ingredients list.
Essential B vitamin supporting skin barrier function
Related Ingredients
Niacin
Essential B vitamin supporting skin barrier function
Nicotinamide
Versatile B3 form for multiple skin concerns
Nicotinamide Adenine Dinucleotide
Cellular energy coenzyme for skin vitality
Nicotinamide Mononucleotide
A NAD-boosting precursor that may support skin resilience through cellular energy and antioxidant pathways
Nordihydroguaiaretic Acid
Potent natural antioxidant from creosote bush
Nymphaea Tetragona
Water lily for soothing benefits
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