Niacinamide ⏤ also called nicotinamide ⏤ is a form of vitamin B3. This water-soluble vitamin is found naturally in foods, such as meat, fish, eggs, dairy products, and cereal grains. This nutrient is necessary for healthy skin. Niacinamide helps your skin produce keratin and ceramides, which are essential components of its outermost layer.
The top layer of your skin is responsible for locking moisture in and keeping environmental stressors out. When this protective barrier is damaged, water easily evaporates and external irritants absorb deep into your skin. This leads to skin dehydration and inflammation, producing dull, red, blotchy skin that is hypersensitive.
Niacinamide skin care products stimulate protein and lipid production to rebuild the skin’s barrier. A healthy barrier will minimize water loss to keep your skin hydrated. When the barrier is restored, external stressors can’t enter your skin and irritate it. This helps decrease inflammation-induced redness, leading to a more even-looking skin tone.