Agmatine Sulfate to lower tolerance ? Hi there, hope someone can guide me to my goal of decreasing kratom tolerance with that nootropic which is agmatine sulfate. On my first try a few months ago, I took agmatine sulfate ranging from 250 mg to 1000 mg around 30 min before my kratom serving. It just didn't work, actually it did the opposite effect! Not only my tolerance wasn't decreased but I didn't feel the mood, energy, motivation boost that I seek while using mainly white and greens. Then I ac