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 Injectable L Carnitine: What It Is, How It Works, and Who Should Use It Mesotherapy Cocktails, Exosomes Regenerative Skin Boosters The Role of L Carnitine in Kidney Disease and Related Metabolic Dysfunctions Subcutaneous Injection Sites and Instructions for Safe Self Administration