Research Labs owner believed in creating the highest quality supplements everyone could afford. We take no shortcuts and use no fillers to create the highest quality vitamins for the best price you can find. Made in the USA in a cGMP certified facility and always independently tested for purity and quality. There are many supplements but none compare to the effectiveness of Research Labs nicotinamide adenine dinucleotide with RiboYOUNG™. Some of the other supplements are mnm, vitamin b3, niacinamide 500mg, resveratrol 2000mg, 1000mg, 300mg, 500mg, niacinamida, nicotinic acid Our product is also great for ampk metabolic activator, akg supplement, fucoxanthin, niacinamida