Mesotherapy is a minimally invasive skin rejuvenation treatment that involves injecting small amounts of a customized cocktail containing vitamins, minerals, hyaluronic acid, or other active ingredients into the middle layer of the skin (mesoderm) using very fine needles, aiming to stimulate collagen production and improve skin texture, tone, and elasticity, often used to address concerns like fine lines, wrinkles, and uneven skin tone; essentially, it’s a method of delivering beneficial substances directly into the skin through micro-injections.