Corpet for horses is comprised of 750 grams of Coriolus versicolor biomass powder with strain number CV-OH1. All raw material for the manufacture of Corpet is supplied by Mycology Research Laboratories Ltd, a worldwide leader in the production of mushroom nutrition products.

The proprietary cultivation process for CV-OH1 is conducted in California. The process involves the use of the mother culture of strain CV-OH1 (Corpet) that has been developed and maintained in isolation and this is used to produce the spawn.

The cultivation process allows for the harvesting of the mycelium and the young fruiting body (primordia). This cultivation technique produces a Coriolus versicolor that is sterile and contains no pesticides, heavy metals, is free from foreign matter and is totally reproducible.