Reguardless of the strenth all the packages state the same serving size.
You do the math:
Strength 130 mg
Serving Size 1/4 Tablet
Ingredients 7-Hydroxymitragynine
Other Ingredients
Microcrystalline Cellulose, Dicalcium Phosphate, Silicon Dioxide, Magnesium Stearate, Food Grade Colorant
Product Type Tablet
Per Serving 32.5 mg
Servings per Pack 4 (Should be 16 not 4)