Mesotherapy mesotherapy is a medical speciality that involves little tiny injctions of natural extracts and vitamins into the skin dermis to treat sagging aging skin it rejuvenates the hands face and neck it can also be used to elliminate cellulite and promote weight loss mesotherapy on the face rejuvenates the cells making them more active therfore stimulating the production of collagen and ellastin this is very effective on the face neck decollete and hands leaving the skin firmer