Alfa Vitamins is a U.S.-based manufacturer (since 2000 in Doral, Florida) of a wide range of dietary supplements, including tablets, capsules, powders, and liquids, known for quality, innovation, and global presence, offering products for men, women, immune support (Vitamin D3), energy (B vitamins, Collagen C), heart health (Omega-3), and general wellness, emphasizing quality control and FDA/USDA compliance.