Q: I have heard the terms subcutaneous injection (SubQ), intramuscular injection (IM), sublingual (SL) and transdermal (TD) for years, but what exactly is the absorption rate between one and the other when it comes to these various forms of transport. I know that everyone says that an IM injection is the only fast way to get something into your system, but what would be the harm in using something transdermal (using DMSO), for instance, as opposed to another method? Is it that big of a deal? A: Good question. We’ll start with a method you didn’t mention…Intravenous injection (IV). While bodybuilders wouldn’t have occasion to use an IV injection unless they were using Nubain, IV injection is the fastest transport of all at about a 95-100% absorbtion rate. Subcutaneous injections are always given through the layers of skin and, ...
HGCQ:  Why would someone recommend HCG intramuscular, instead of sub-q? A lot of dudes seem to use it this way. I just always thought HCG and insulin were sub-q. A: Believe it or not, the manufacturer recommends HCG injections intramuscular. Odd, huh? Who knew?  It is a little known fact that has been bypassed by people doing just the opposite and most people injecting sub-q. While I can't argue with the manufacturer, I will say that you should use the method that works best for you. Since almost all of us have used HCG under the skin, I think it's safe to say that using it this way is fine. But, try the intramuscular to see if your dose goes up or down or it's more effective. Just remember, sticking muscles is a lot more painful. Sub-q is a ...