The needle mesotherapy procedure does not require any special preparation from the patient. It lasts from a few to several tens of minutes, depending on the size of the treated area. It involves direct injection of small doses of therapeutic substances into the skin in areas that need rejuvenation. The composition of the cocktail to be administered depends on the patient's needs and the type of treatment being performed. Among the active substances administered, the most common are vitamin A, B and C complexes, amino acids, nucleic acids, minerals, coenzymes, l-carnitine or caffeine.