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: Ingesting the supplement can significantly raise estrogen levels, which may lead to unwanted side effects like gynecomastia (breast enlargement) in men. Research-Grade vs. Supplement

Although banned for human consumption as a supplement, the powder is still available for legitimate scientific use: Androstenedione (a Natural Steroid and a Drug Supplement) buy androstenedione powder

: Research shows that oral androstenedione does not effectively increase serum testosterone levels in young men. : Ingesting the supplement can significantly raise estrogen