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Our grading system is simple and consistently applied across all products.
We use the following two criteria to determine the grade of a product based on its lab results:
Potency – How much of the active compound (7-OH or mitragynine) is present in the product vs. the amount claimed on the label?
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.