What are the performance differences between the two if any and which one is more likely to cause gyno?
If you mean methyl dien by MD1T then forget about it. It is only usefull at around 20 mg/day. It can't hold a stick to M1T. Neither cause much of a boost in performance, but M1T is very anabolic. It also has a number of sides and is rough on your liver. I wouldn't touch it without using hcg.
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How to Use HCG
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