Dr. Myc's Magical Gypsum has been researched and designed to promote fructification of all mushrooms species, including difficult to fruit varieties. This gypsum is solution grade, meaning it's of the finest quality - no more messy, granular gypsum that doesn't mix well with your bulk substrate material or grains.
 
The composition of Magical Gypsum is designed to work especially well MGP Microbes, providing a great source of microbe food but also offers a host of benefits without use of our MGP, including: - Increases nutrient uptake
- Increases water holding capacity in substrate material
- Regulates the PH value of substrate, through PH buffering
- Stimulates mycelial growth
- Increases gross fruit quantities
 
If you want to have the best results from your mushroom grow - Magical Gypsum is the only Gypsum you'll ever need. 3lb Bag.