NiaTrexNiaTrexNiaTrex by Boro Labs delivers powerful support for cardiovascular health and healthy lipid metabolism using sustained release niacin (vitamin B3). Niacin has been clinically studied for decades and is known to support high density lipoprotein cholesterol (HDL C) levels, but many people struggle with the side effect known as the niacin flush a temporary warm, tingling feeling in the skin. To address this, NiaTrex uses a proprietary wax matrix