Mesoderm: It is one of 3 embryological and histological categories called endoderm, mesoderm and ectoderm. Since the dermis, hypodermis, fatty tissues and musculoskeletal system develop from the mesoderm, the term mesotherapy refers to injection into the dermis and hypodermis. Mesotherapy is a minimally invasive technique applied by intracutaneous and subcutaneous injection of mixtures containing natural plant extracts, homeopathic agents, drugs, vitamins and other bioactive substances, in very small amounts and in different concentrations, through multiple needle holes. Mesotherapy applications, which are increasingly used in aesthetic dermatology, are used in many areas such as cellulite, fat melting, correction of body lines, regional thinning, skin renewal, lifting, spot treatment and hair loss. Hair loss Face and neck rejuvenation Cellulite and regional slimming Melasma and spot treatment Stretch marks and scars