ENDUR-ACIN extended-release wax matrix niacin is a unique dietary supplement that provides advanced support for heart health and cholesterol balance.* Endur-Acin's ability to help maintain healthy cholesterol levels within the normal range is backed by clinical research.* “Niacin” is a catch-all phrase for two chemical forms of this B vitamin: nicotinic acid and nicotinamide. Scientific evidence has found that only one form of niacin, called nicotinic acid, has targeted benefits for heart health and cholesterol metabolism. The other form, nicotinamide (sometimes called flush-free niacin) does not provide the same benefits. Endur-Acin provides nicotinic acid - the only form of niacin with targeted benefits for heart health and lipid metabolism. Its proprietary vegetable-based wax tablet core (matrix) releases nicotinic acid gradually, over 6-8 hours. This slow release helps eliminate digestive upset and skin flushing that can occur with immediate-release niacin.* Endur-Acin is available in three strengths - 250 mg, 500 mg and 750 mg - for easy compliance with doctor recommendations. It's free of salt, sugar, starch, preservatives, artificial colors or flavorings, and common allergens (milk, egg, fish, shellfish, tree nuts, peanuts, wheat, and soy). As with all dietary supplements, consult your physician prior to use if you have or suspect a medical condition, are taking any medications, or are nursing or pregnant. See label for more details. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.