Chosen1 is a prohormone made and sold by Blackstone Labs. It is designed to increase testosterone, boost muscle size, increase strength and boost stamina.
This product contains a “1-DHEA blend”. This includes 1 androstene-3b-ol, 17-one, 17-one undecanoate and 1 androstene-3b-ol, 17-one caprylate. According to the manufacturer, the product could prevent the conversion of testosterone into estrogen.
The brand behind the product also says it could help users boost muscle growth without accumulating fat. It might also promote “more aggression in the gym” and support better bedroom performance.