NOW Foods Supplements, Niacin (Vitamin B-3) 500 mg, Essential B-Group

What the brand says

Sold as “NOW Foods Supplements, Niacin (Vitamin B-3) 500 mg, Essential B-Group Vitamin*, Nutritional Health, 100 Capsules”

Niacin (Vitamin B-3) is an essential B-group vitamin necessary for good health. Natural color variation may occur in this product. Take 1 capsule daily as needed, with a meal. This high potency capsule should be taken under doctor's supervision.