Niacinamide efficacy in skin therapy: The multitasking marvel for glowing skin – A comprehensive literature review

Niacinamide (nicotinamide), a water-soluble form of vitamin B3, is a foundation in the practice of dermatology and cosmeceuticals due to its incredibly wide clinical effects. This review research article compares the cosmetic and therapeutic benefits of niacinamide, outlining its mechanisms and applications, paving the way for future innovative possibilities in skincare. Niacinamide is a powerful antioxidant and anti-inflammatory agent with the additional advantage of rehabilitating the skin barrier and enhancing extracellular matrix integrity. It reduces oxidative stress, erythema, sallowness, and hyperpigmentation through inhibition of melanosome transfer, while randomized controlled trials have demonstrated improvement for fine lines, wrinkles, and the general appearance of skin. In acne vulgaris, sebum production is lowered, inflammatory calming effects are realized, and antimicrobial effects, with the added advantage of boosting the hydration of the skin. Its applications reach beyond cosmetic benefit in successfully treating atopic dermatitis, melasma, psoriasis, rosacea, and cutaneous lupus erythematosus, with topical formulations alleviating symptoms of scaling, redness, and breakdown of the skin barrier. Oral supplements also enjoy the added advantage of reducing the incidence of non-melanoma skin cancers in high-risk individuals. In cosmeceutical product development, niacinamide has been added to sophisticated formulations including nanogels, halloysite nanotubes, and multimodal products with emollients, herbal extracts, and exfoliants to promote stability, deposition, and functionality. Clinical studies show superior results when added to ceramides, sodium hyaluronate, or botanical actives such as calendula oil. In general, niacinamide meets the criteria for a safe, multifaceted, and efficient agent spanning cosmetic improvement and therapeutic dermatology. Its demonstrated efficacy and favorable tolerability profile establish it as a multipurpose agent in skin renewal and disease treatment, and additional studies on optimal delivery vehicles and systemic administration could further enhance its clinical applicability.