Click to expand Tap to zoom FLUSH-FREE NIACIN by Integrative Therapeutics Save Liquid error (product-badge line 32): -Infinity% $22.50 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Liquid error (product-form line 106): Could not find asset snippets/wishlist-product.liquid Flush-Free Niacin is a flush-free formula that provides inositol hexaniacinate, a form of niacin (vitamin B3) used in Europe for more than 30 years.