Gemmoderivatives, also known as glycerinated macerates (MG) or Meristemoderivati, are hydrogliceroalcoholic macerations obtained from young plant tissues at the initial stage of development, collected spontaneously in ecologically undraged territories or coming from from biological cultivations.The used parts - buds, radicles, sprouts, lymph - just taken are carefully checked and sent to the extraction phase with a solvent mixture of water, alcohol, glycerine. The phyto-derivative obtained contains all the active ingredients characteristic of meristems and performs their complex health activities in the most effective way.