Mesotherapy is a technique in which vitamins, enzymes and natural minerals are injected under the skin through a series of injections. This helps rejuvenate the skin as it delivers nutrients where they are needed. It can also be used to treat hair loss. There is an option of local anaesthetic though the needles are so small, it is not necessary for most people. Each injection places a tiny drop of the solution 1 to 4mm into the skin and a few sessions are required to achieve the desired effect. For treatment of hair loss, you may lose some hair before the effect is visible in a few weeks.