Creatine ethyl ester, also known as creatine ester, cre-ester and CEE, is a substance sold as an aid for athletic performance and for muscle development in . It is an derivative of , from which it is made. In the body, CEE is converted back into creatine. The ethyl ester is said to have a much better absorption rate and a longer in the body than regular , because it is slightly more . However, these claims have not yet been conclusively proven by independent research, and in fact a study presented at the 4th International Society of Sports Nutrition (ISSN) annual meeting demonstrated that that the addition of the ethyl group to creatine actually reduces acid stability and accelerates its breakdown to .
As a supplement, the compound was developed, patented and licensed through , the technology transfer entity of the , and is sold under numerous brand names.

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Effect : Increases energy, aids weight loss
Best Before : 36 months from manufacturing
Ph Level : 5.0 7.0
Dosage Form : Other, Powder / Capsule / Tablet
Dosage Guidelines : Other, Take with water, preferably before meals
Packaging Type : HDPE drum, Double PE bags
Effect : Improved workout performance
Best Before : 24 months from manufacturing
Ph Level : Neutral
Dosage Form : Powder
Dosage Guidelines : Other, As recommended by nutritionist or physician
Packaging Type : HDPE Container / Pouch
Effect : Increases muscle creatine stores and ATP production
Best Before : 24 months from manufacture
Ph Level : Neutral (6.57.5)
Dosage Form : Powder
Dosage Guidelines : Other, Take with water or juice, preferably before or after workout
Packaging Type : Drum, double PE bags
Effect : Helps reduce muscle breakdown, promotes muscle mass gain, supports recovery after exercise
Best Before : 24 months from manufacture
Ph Level : Neutral
Dosage Form : Powder
Dosage Guidelines : Other, Take as directed by physician or nutritionist, usually with water or beverage
Packaging Type : HDPE drum, fiber drum, or customized