Our grading system is simple and consistently applied across all products.

We use the following three criteria to determine the grade of a product based on its lab results:

1. Potency – How much of the active compound (7-OH, MGM-15 or mitragynine) is present in the product vs. the amount claimed on the label?
2. Unadvertised MGM-15 – Does the product contain more than 1mg MGM-15, despite being labeled as simply a 7-OH or mitragynine product? If so, the product automatically gets an F grade.
3. Residual Solvents – Are there measureable amounts of any Class I or Class II residual solvents (toxic chemicals left over from the manufacturing process)? If so, the product automatically gets an F grade.

Refer to the table below for the precise requirements of each grade.