Remember, nothing is alleged to--or can have--happened to all of MLB over some one or two seasons: the claim is that PEDs were being used at a slowly but steadily increasing rate (and thus "distorting records") from very roughly 1980 through the present. Were that so, or anything like it, we would expect to see a clear long-term uptrend during this period. But we don't: we see a nearly flat line that, if anything, slopes slightly down. The "boost" just isn't there. But that doesn't seem to stop anyone from talking about it.
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.
Water based or Aqueous testosterone suspension can peak in the blood stream within minutes of being injected and is metabolized very fast. Because Testosterone Suspension remains in the body for a short time, it has to be injected very frequently. In most cases Testosterone Suspension has to be administered daily or few times a day in order to maintain a stable blood testosterone level. If Testosterone Suspension is your preferred choice you can rotate injection spots each time rather than injecting the same location each day. This form of testosterone is not highly recommended and is often used by very experienced and extreme athletes, body builders and power-lifters. This testosterone form give the best strength results and a high aggressiveness. It also exist a testosterone with no ester and oil based called TNE (Testosterone No Ester).