Vitamin B3, also known as nicotinamide, is an essential nutrient that plays a vital role in maintaining skin health and supporting the immune system. A large-scale study involving over 33,000 participants revealed that regular intake of this vitamin can substantially reduce the risk of non-melanoma skin cancers.

The research found that individuals who took 500 mg of nicotinamide twice daily after their first skin cancer diagnosis experienced a 54% reduction in recurrent cases. Overall, participants who consistently used the supplement had a 14% lower risk of developing new skin cancers.

Vitamin B3 helps enhance DNA repair in skin cells damaged by ultraviolet (UV) radiation, reduces inflammation, and strengthens the immune response to eliminate abnormal cells before they become cancerous.

Experts emphasize that early supplementation is key to achieving optimal benefits, as its protective effects appear to decline when used only after repeated cancer diagnoses.

While nicotinamide offers protective properties, it should not replace sunscreen, protective clothing, or regular skin check-ups.

Natural sources of Vitamin B3 include:

Red meat and poultry

Fish such as salmon and tuna

Nuts and seeds

Avocado, mushrooms, and whole grains

Beyond its cancer-fighting benefits, nicotinamide also helps improve skin hydration, reduce pigmentation, and even skin tone, making it a popular ingredient in modern skincare products