Niacinamide (Vitamin B3)

Niacinamide broke out as the 2020s’ most versatile skincare ingredient, with sales growing 35% annually through 2025. Clinical evidence shows it reduces pore appearance by 22%, evens skin tone, and strengthens the moisture barrier while calming inflammatory acne—all at a fraction of the cost of luxury retinoids. Its tolerability surpasses #1 Retinol for universal skin compatibility, making it a staple from budget The Ordinary serums to La Mer formulations.