Besides the well known plant hormone, kinetin, coconut endosperm also contains vitamins, amino acids, sugars, minerals, and more. Contains Kinetin, which we also sell in its pure form. Coconut milk is liquid endosperm. In nature it both stimulates the embryo to grow and at the same time supplies the embryo with food. Results yielded from callus cultures showed that its active components stimulate the growth of foreign cells, too. Endosperm is the seed tissue, both liquid and solid, used to provide nutrition to the plant embryo before it emerges and can obtain its own nutrition via photosynthesis. Coconut endosperm is the perfect cell food because the embryo is isolated from the environment until emergence, and the liquid endosperm provides everything the embryo needs and stimulates its growth. J. Van Overbeek (Rijksuniversiteit Utrecht) introduced coconut milk in 1941 as a new component of nutrient media for plant cell cultures.