How we review

This site and Vivacelle, one of the NAD+ supplements we cover, share an owner. When we link to other products, we may earn a commission if you buy. We publish the price, serving and label figures each product states, so you can check our numbers against the source.

Every figure we publish is taken from the product's own page: the ingredients, the doses, the serving size and the price.

Price per serving is computed from those stated figures, nothing else. When a page leaves something out, we mark it as not stated rather than filling the gap with a guess.

Each review carries the date the figures were checked, so you know how fresh they are and can recheck them against the source yourself.