Mesotherapy consists of intradermic injections of medications, including homeopathic ones, in certain districts of the body.  With very thin needles small quantities of a medication are injected into the derma corresponding to the skin projection of an organ, or part of an organ, which is affected by a pathological process.

Since absorption of a medication at dermic level is rather slow, a small deposit will form, which will run out in more than 12 hours. This prolonged action by the medication will mainly involve the receptors of the district where the disease to be treated is present; only a minimal part of the therapeutic molecules will enter the bloodstream.