It is very useful to supply certain substances to the plant that do not have a phytosanitary effect (fungicide, insecticide, hormonal...), and that are not fertilizers either, but that do make the plant capable of combating abiotic stress more effectively (thermal stress or water). It is also of great interest to be able, without fertilizing, to activate or regulate the metabolism of the plant, so that it improves in aspects such as vegetative growth, respiration, stomatal opening, quality and harvest, as well as many other natural processes.   There are certain substances with high added value, such as antioxidants, vitamins, plant extracts, etc... with biostimulating effects on plants, whose assimilation by the plant is achieved in a much more efficient way if we use endotherapy for their contribution, obtaining results very impressive without the need for the use of more harmful chemicals