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10.4077/cjp.2009.amh036 12 ChenM.JiangL.LiY.BaiG.ZhaoJ.ZhangM.et al (2017)

Pharmacokinetic characterization in rats found a terminal half-life of approximately 12.7 days after intravenous administration and 8.8 days after intraperitoneal administration, with a considerably shorter half-life (approximately 335 minutes) measured in isolated rat serum

However, some research has reported that glutamine supplements may decrease muscle soreness and improve recovery after intense exercise ( In fact, one study found that glutamine or glutamine plus carbohydrates can help reduce a blood marker of fatigue during two hours of running ( It has also been used to try to boost the immune function of athletes, but results vary ( Other research has found that it did not improve the recovery of carbohydrate stores (glycogen) in muscle when added to carbohydrates and certain amino acids ( In the end, there is no evidence that these supplements provide benefits for muscle gain or strength

Store the lyophilised vial cool, dry and protected from light prior to reconstitution