Solaray Mega B-Stress

This product is formulated using a patent-pending, two-stage, timed-release concept. The single-stage ingredients are intended to be rapidly released. The two-stage ingredients are designed so that half are intended to be rapidly released while the other half are intended to be gradually released over 6-8 hours. The two-stage ingredients include Vitamin C, Thiamine, Riboflavin, Niacinamide and Vitamin B-6.