NMN products often shown with a specific number: NMN 6000, NMN 9000, NMN 10000, NMN 15000 or NMN 18000. For Rescence, Pure NMN 15000 and Pure Resveratrol 15000 represent the exact strength of the active ingredient NMN (99% purity) or trans-resveratrol (98% purity) in each product. As both are in pure powder form, 15000 means 15000 mg of NMN and 15000 mg of trans-resveratrol (1 g = 1,000 mg).  Consumers should be aware that this is not applicable for all brands. Some brands may not show how much milligram of resveratrol or NMN in each capsule due to minimal content and some would add up the milligrams of multiple ingredients to package under NMN 18000 for example. while the actual strength of NMN is less than what is made believe. At Rescence, we value integrity. We recommend that whether it’s for supplements or food, always check the label to see no inferior ingredient is mixed in to support your wonderful longevity journey!