Vitamin B3

What Is Vitamin B3?

Vitamin B3, also known as niacin, is a water-soluble member of the B-vitamin family with far-reaching benefits for energy metabolism, skin health, brain function, and immune defense. It exists in two primary forms—nicotinic acid and niacinamide (nicotinamide)—both of which are biologically active and serve different but complementary roles in the body. As a coenzyme in hundreds of biochemical reactions, Vitamin B3 plays a key part in converting carbohydrates, fats, and proteins into energy, supporting the body’s overall vitality and performance. At the cellular level, Vitamin B3 contributes to the production of NAD⁺ (nicotinamide adenine dinucleotide) and NADP, coenzymes essential for mitochondrial function and energy metabolism. This makes niacin fundamental for maintaining steady energy levels, especially in high-demand organs like the brain, heart, and muscles. Without sufficient B3, fatigue, weakness, and impaired metabolic efficiency may arise.

One of the standout features of Vitamin B3 is its impact on skin health—both when taken internally and applied topically. Niacinamide, in particular, is known for its ability to improve skin barrier function, boost hydration, and promote a smoother, more even complexion. Clinical studies show that topical niacinamide can reduce inflammation, calm redness, minimize pores, and enhance skin elasticity. It also helps regulate sebum production, making it highly beneficial for blemish-prone or oily skin, as well as aging or sensitive skin types. Internally, Vitamin B3 supports the nervous system by aiding in the synthesis of neurotransmitters, contributing to mental clarity and mood balance. It’s also involved in cognitive protection, with emerging research suggesting that niacin may help preserve brain health, improve focus, and slow age-related cognitive changes. In addition, niacin supports cardiovascular function by promoting healthy circulation and helping to maintain balanced cholesterol levels. Niacin supplementation has been studied for its ability to raise HDL (good cholesterol) while lowering LDL (bad cholesterol) and triglycerides.

Vitamin B3 also plays a crucial role in immune health. It helps stimulate the production of white blood cells and reinforces the integrity of mucosal barriers—such as those in the gut and respiratory tract—that serve as the body’s first line of defense. Its anti-inflammatory effects further enhance immune resilience and contribute to its value in both skincare and overall health. While niacin is found in foods such as poultry, fish, legumes, whole grains, and fortified cereals, it can be depleted by stress, alcohol, medications, or digestive conditions that impair nutrient absorption. Because it is water-soluble and not stored extensively in the body, regular dietary intake or supplementation is needed to maintain optimal levels.

At NATURIQ, we include high-quality, bioavailable forms of Vitamin B3 in our formulations to support radiant skin, balanced energy, and immune function. Whether you're looking to boost skin clarity, support brain health, or improve daily energy, niacin is a versatile and effective nutrient to include in your routine. In summary, Vitamin B3 is a dynamic and multitasking vitamin that strengthens multiple systems at once. From energizing your metabolism to soothing your skin, it plays a key role in daily health, performance, and beauty.