China 99.9% Estriol CAS NO.50-27-1 Bodybuilding Use

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Description:Estriol is a natural estrogen which is associated with pregnancy. In pregnant women, estriol is produced in the fetus by the fetal liver and in the placenta. Levels of estriol in the blood and urine can be used to determine whether or not a woman is pregnant, and to monitor the progress
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