Subcutaneous Injection: What It Is and How to Give One Intramuscular vs. Subcutaneous Injections: What's the Difference? Intramuscular (IM) shots go deep into the muscle for faster absorption, while subcutaneous (SubQ) injections are placed just under the skin for slower, more sustained Rotating your Subq injection sites is an absolute must.and this is why, Comment Formula to join my Skool community waiting list. Inside, youll get access to all the latest information and details L Carnitine Injection Products list Products Ceva Australia Are some methods of administering HRT inherently better than others? Audience requested: subcutaneous injections. Subcutaneous means under the skin. In this type of injection, a short needle is used to inject medication