About Halo,see what newhopemed says:The most toxic of these 17-alpha alkylated steroids are Anadrol, methyltestosterone, and Halotestin in that order. These three mass building steroids are highly prized by bodybuilders for the incredible and immediate increases in muscle size and strength produced by these very androgenic and highly anabolic steroids. Anadrol is the most toxic and dangerous of the three. Grossly noticeable jaundice, yellow eyeballs and skin indicating liver damage, can occur with only three to six weeks of use depending on dose.
If someone must use one of these three, that person should use Halotestin. It is the least toxic of the three. Halotestin produces exceptional muscle hardness and definition with very little conversion to estrogen and virtually no water retention and no suppression of internal testosterone secretion. Because of these factors, and the aggressive confidence it supposedly induces, it is a favorite of athletes who play burst energy sports like football and boxing.