HCG : It is strongly recommended that HCG be a part of your testosterone cycle. The addition of HCG will prevent testicular atrophy, which will occur with testosterone use. When we use testosterone or any anabolic steroid, we suppress our natural testosterone production. If we are supplementing with testosterone, this isn’t a concern during the cycle as we are providing our body with the testosterone it needs. However, HCG will keep the natural production online, which will make post cycle recovery far more effective. A dose of 250-350mg two times per week will suffice for most men. For information on post cycle therapy (PCT) please visit How to Come off Steroids .
More specifically, the methylcobalamin form of B12 is recommended, as it has been shown to be the most effective. Taking B12 gives you a huge boost of energy while training, and more importantly, greatly helps your recovery.