Glycine is the simplest and most omnipresent amino acid in your body. It helps in maintaining a healthy function of the central nervous system and promotes relaxation and the normal function of muscles. Glycine also plays an important role in detoxification, by combining with toxic substances and converting them to easy-to-excrete harmless forms. According to research, this amino acid assists in promoting deeper sleep. While being involved in growth, it has a calming effect on your brain and a positive impact on atten-tion and memory in adults. Glycine is also associated with a strong immune system and regulated oxidative stress. For optimal benefits, the recommended intake for adults is one (1) to three (3) grams of glycine. Studies suggest that even much higher doses are safe to take. However, most glycine products are only available in 500 mg capsules, making them costly. For that purpose, Life Extension introduced glycine supplements in easy-to-swallow 1000 mg capsules.