The best dose for NMN will be different for everyone. It’s also hard to calculate the exact differences in absorption among NMN’s various delivery methods. We recommend starting at a lower dose — 500mg or less — and working your way up. It may be wise to purchase a 500mg dose with a serving size of two pills (250mg each) and only take one pill for the first few weeks. That will be a smart way to test its efficacy while saving you some money.