Vitamin B3

Niacin, or vitamin B3, belongs to the B vitamin complex. Vitamin B3 is a collective term for nicotinic acid and niacin. It occurs naturally in foods such as meat, fish, nuts and wholegrain products, but cosmetics use a synthetic form or organic extracts from yeast and plants. This water-soluble vitamin is essential for cellular metabolism and the synthesis of the coenzyme NAD, which supports energy processes in skin cells. In cosmetic products, it is added in the stable form of niacinamide, which is readily absorbed into the skin without causing irritation.

It protects the skin and improves its health. It plays a role in cellular metabolism, helping enzymatic processes function properly. Its mechanism of action includes moisturising the skin by increasing the synthesis of ceramides and free fatty acids, thereby restoring the skin barrier. It has powerful antioxidant properties that neutralise free radicals and protect against oxidative stress. It soothes inflammation by inhibiting pro-inflammatory cytokines and promotes exfoliation by regulating keratinisation. Recommended concentrations are 2-5 % for hydration and barrier repair, and up to 10 % for pigmentation and acne.

Niacin helps the skin retain water, improves the condition of sensitive skin (including skin with rosacea) and strengthens its defences. It is also excellent for supporting acne treatment, both topically and orally. It is useful even for severe forms of acne. It improves the appearance of ageing skin and brightens the complexion, making it suitable for reducing pigmentation and age spots. It plumps and hydrates the skin and prevents water loss. Its benefits extend well beyond our skin and hair. I recommend it for dry, sensitive, oily, acne-prone, dehydrated and mature skin. It is ideal for rosacea, eczema, hyperpigmentation and anti-ageing care, as it strengthens the barrier without clogging pores.

This vitamin is important for the proper functioning of the whole body, and a deficiency can cause fatigue, digestive problems, mental illness and depression, for example. A clinical study showed that niacinamide at a concentration of 4 % reduced hyperpigmentation by 35-68 % after 4-8 weeks in patients with melasma (Journal of Cosmetic Dermatology, 2004). Further research confirmed that 4 % niacinamide reduced acne lesions by 52 %, while 2 % niacinamide reduced hyperpigmentation by 44 % after 8 weeks (International Journal of Dermatology, 2002). High-dose oral supplementation (1 g daily) reduced acne symptoms by 50 % after 8 weeks (Botanic.sk study).