Life Extension Glycine Capsules, 1000 mg, 100 Vegetarian Capsules

Our Price: $13.00

The amino acid Glycine has a calming effect on the brain and is also involved in growth. Glycine may help promote deeper sleep, faster then sleep medication. Glycine also has a positive impact on attention and memory and bacteria regulating effects.

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Glycine is a conditionally essential amino acid that serves as both an inhibitory and excitatory neurotransmitter. It is the chemically simplest and most omnipresent of all the amino acids. It combines with many toxic substances, converting them to harmless forms which are then excreted.206,207

This amino acid may have a calming effect on the brain and might also involved in growth.208-219 Research suggests that glycine may help promote deeper sleep.209,210 Glycine appears to have a positive impact on attention and memory in adults.220-223 Glycine may also help boost the immune defense system and has oxidative stress regulating effects.224-227

Most people need to take between one to three grams of glycine to be effective even though studies show high doses are safe.228,229 However, most glycine products are only available in 500 mg capsules. That makes taking higher doses cumbersome and costly.


Supplement Facts

Serving Size: 1 vegetarian capsule

Servings Per Container: 100

Amount Per Serving
Glycine 1000 mg
Other Ingredients: vegetable cellulose (capsule), ascorbyl palmitate

Dosage and Use:

  • Take 1 capsule one to three times daily on an empty stomach at bedtime, or as recommended by a healthcare practitioner.

Caution: If you have kidney or liver disease, have suffered from a stroke, or are taking the anti-psychotic drug clozapine, consult a healthcare practitioner before using this product.


  • If pregnant, nursing, or taking medication, consult your physician before taking this product
  • Keep out of reach of children
  • Do not exceed recommended dose


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207. Curr Drug Metab. 2011;12(2):104-23.
208. Acta Endocrinol (Copenh). 1980 Mar;93(3):283-6.
209. PLoS One. 2011;6(9):e25076.
210. Psychiatry Clin Neurosci. 2011 Mar;65(2):142-9.
211. Sleep. 2008 Nov;31(11):1483-6.
212. J Clin Psychopharmacol. 1999 Dec;19(6):506-12.
213. Endocrinologie. 1979 Jul-Sep;17(3):201-4.
214. Glycine as a neurotransmitter. Psychopharmacaology: A Generation of progress. New York: Raven Press; 1978, 333-46.
215. Bioprocess Biosyst Eng. 2011 Sep 25. [Epub ahead of print]
216. Mini Rev Med Chem. 2011 Oct 28. [Epub ahead of print]
217. J Child Neurol. 2002 Dec;17 Suppl 3:3S84-7; discussion 3S88.
218. Am J Clin Nutr. 2002 Dec;76(6):1302-7.
219. J Endocrinol Invest. 2003;26(10 Suppl):16-26.
220. Psychiatr Pol. 2010 May-Jun;44(3):395-404.
221. Pain. 2011 Apr;152(4):809-17.
222. Sleep. 2008 November 1; 31(11): 1487–1491.
223. Nutr Neurosci. 2003 Oct;6(5):269-75.
224. Antimicrob Agents Chemother. 2004 Oct;48(10):3782-8.
225. Rev Alerg Mex. 2006 Nov-Dec;53(6):212-6.
226. Cell Biochem Funct. 2004 Mar-Apr;22(2):123
227. Pharmazie. 2004 Jan;59(1):55-60.
228. Psychiatry Res. 2009 August 30; 173(2): 143-149.
229. Biol Psychiatry. 1996 Feb 1;39(3):213-5.


* These statements have not been evaluated by the Food and Drug Administration. This Product is not intended to diagnose, treat, cure or prevent any disease.



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