Purovitalis NMN powder is made of 99+ % β-Nicotinamide Mononucleotide, making it one of the highest quality and purest on the market. With each production we make sure it is thoroughly third-party tested on purity, heavy metals and pesticides. Our NMN powder comes in serving sizes of 15 or 30g (when taking 500mg per serving) and comes with a handy scope to measure your desired dose. Our NMN powder is ready to be taken sublingually, which is known to provide the fastest supplement absorption. Taking NMN powder sublingually provides an instant absorption of the supplement into the bloodstream.