![TR-NIACIN](http://shop.naturalheartdoctor.com/cdn/shop/products/tr-niacin_2_{width}x.png?v=1653567979)
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TR-Niacin, also known as vitamin B3, supports healthy lipid levels, especially high-density lipoprotein cholesterol (HDL-C). Time Release (TR) Niacin uses a proprietary, natural wax-matrix coating technology to release niacin slowly and reduce negative side effects.