This was the supplement that Mark McGwire had sitting in his locker that pretty much started the whole concern in major league baseball about supplements. After Androstene, another “andro” product called AndroDiol (androstenediol) became very popular because it was much more anabolic and had fewer side effects.

As the supplement industry progressed, these prohormones became more and more potent to where they were basically legal steroids.

While there were many brands and different compounds, most guys still referred to all of these prohormones as “andro”.

What Did This New Law Do To Andro?

When the new law was signed by President Bush, it basically made all prohormones illegal. Items such as Andro Poppers, Nor-Andro, 1-AD, Methyl 1-Test (M1T) and others were banned and all of the companies who made these “andro” items stopped production.

But I’ve Seen Supplements Being Sold That Still Sound Like Andro

True. Shortly after the President signed the law into effect, most of the companies who made these products quickly started to develop new products that were legal.
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