Chatsworth, CA-based Natrol, Inc. has introduced several new supplements to promote health for consumers of all ages. Natrol Biotin contains B vitamins, which promote shiny hair and strong, resilient nails while assisting cellular energy production. Natrol Cholest Intercept contains phytosterols to assist in lowering low-density lipoprotein (LDL) cholesterol. The formula also supports normal homocysteine levels. Natrol L-Arginine 3000 mg supports healthy blood vessels, and may assist men’s sexual desire and arousal, according to the company. Na­trol Milk Thistle Advantage is a liver detoxification formula, which contains silymarin and supporting herbs in vegetarian capsules. Natrol Mood Positive 5-HTP contains 5-HTP, theanine and B vitamins to help reduce anxiety.