Tetrahydrogestrinone (THG or "the Clear"), closely related to the banned anabolic steroids gestrinone and trenbolone, represents an anabolic steroid originally designed by an American organic chemist and developed by an American nutritional supplement company to escape detection by standard drug testing.

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Quizplus · Accepted Answer

Tetrahydrogestrinone (THG), also known as "the Clear," is indeed an anabolic steroid that was specifically designed to be undetectable by standard drug tests. It was developed with the involvement of American chemist Patrick Arnold, who was working for the Bay Area Laboratory Co-operative (BALCO), a company that was implicated in a major sports doping scandal.

Tetrahydrogestrinone (THG or "The Clear"), Closely Related to the Banned