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A superhuman drug whose effect said to surpasses the genetic factor GDF-8. IGF-1 is so advanced that it’s undetectable, even with blood or urine test.

Description Edit

The IGF-1 is a new genetic factor discovered by Doctor Tachikawa that causes a direct change in muscular growth. When IGF-1 is combined with a virus and then injecting into the Dorsal Muscles it produces amazing striking power. It is said that IGF-1 would make it possible for a schoolboy to knock Wanderlei Silva out. 

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