Dr. Myc Gypsum with MGP Microbes & Humic Acid
Best additive for mushroom growers seeking higher yields and healthier mycelium.
Dr. Myc Magical Gypsum is a premium, solution-grade additive designed to enhance mushroom fructification, even for difficult varieties. This high-quality formula integrates seamlessly with substrates and grains, unlike messy granular gypsum. It boosts nutrient uptake and water retention, regulates pH through buffering, stimulates robust mycelial growth, and increases overall fruit yield. Essential for optimal mushroom cultivation, it ensures superior results in your growing operations.
$16.95
Owner Satisfaction
4.7
/ 5
Category Rank
50
/ 4448
#50 in Fertilizers
Price vs Category Average
-73%
Below average
Formulation
Solution grade gypsum
/ Solution grade gypsum
Who it's for
- Busy cultivators seeking an all-in-one substrate preparation solution
- Mushroom growers needing improved aeration and stable pH levels
- Serious mycologists focused on maximizing root and mycelial health
Who should skip it
- Budget-conscious growers preferring to buy bulk agricultural gypsum
- Gardeners looking for a general-purpose soil amendment
- Beginners intimidated by precise measurement and messy mixing
Performance breakdown
Mixing efficiency
Solution-grade formula eliminates the clumping issues common with granular gypsum.
Mycelial growth stimulation
MGP microbes actively accelerate colonization rates across various mushroom species.
Substrate pH stability
Reliable buffering capacity keeps the growing environment within optimal ranges.
Moisture retention
Humic acid integration significantly improves substrate water-holding capabilities.
Fructification yield
Noticeable increase in fruit density even with challenging, slow-growing varieties.
Application versatility
Seamlessly integrates into both grain spawn and bulk substrate preparations.
Key Specs
Formulation
Solution grade gypsum
Composition
Contains MGP Microbes and Humic Acid
Function
Promotes fructification in mushrooms
Substrate Compatibility
Mixes well with bulk substrate material or grains
pH
Buffers and regulates
Drainage Level
Retains Moisture
Moisture Retention Level
High
Texture
Fine
Features
- Promotes mushroom fructification
- Solution grade for easy mixing
- Stimulates vigorous mycelial growth
- Enhances nutrient uptake
- Improves water retention
- Buffers and regulates substrate pH
- Ideal for all mushroom species
What customers say
Customers overwhelmingly praise the high quality and noticeable effectiveness of this specialized gypsum blend. Users report that the product is incredibly easy to incorporate into their substrates, mixing smoothly without clumping. The inclusion of MGP microbes and humic acid is frequently cited as a key differentiator, leading to robust growth and reliable results. Consumers feel the superior performance justifies the investment, making it a trusted staple for serious cultivators seeking consistent quality.
Know before you buy
Standard granular gypsum is often difficult to dissolve and can lead to uneven distribution in your substrate. Dr. Myc’s solution-grade formula is designed to mix seamlessly into water or substrate, ensuring consistent nutrient availability and pH buffering throughout your grow.
Yes, this formula is versatile and suitable for all mushroom species. It is particularly effective for difficult-to-fruit varieties that require precise pH regulation and enhanced nutrient uptake.
The MGP microbes and humic acid work together to stimulate vigorous mycelial growth and improve the overall health of the substrate. This combination helps the mycelium access nutrients more efficiently, which directly supports stronger fructification and higher yields.
Yes, it is specifically formulated to improve water retention. By helping the substrate hold moisture more effectively, it creates a more stable environment for your mycelium to thrive, even during the later stages of growth.
It is highly versatile and can be used in both. You can integrate it into your grain spawn to encourage faster colonization or mix it into your bulk substrate to provide the necessary minerals and pH buffering required for a successful flush.
Still have a question?
Ask Hayley anything about this product before you decide.
Ready to buy?
$17