Nature Made Balanced B-100 Complex (timed release) provides a dose of the essential B vitamins (thiamin, riboflavin, niacin, B6, B12, biotin and pantothenic acid) plus 100% of the daily value of folic acid. These nutrients work simultaneously to help produce energy, promote healthy red blood cells and maintain nervous system health. No preservativees or artificial colors. Yeast, starch and gluten free.