System Labs vs Embody
The only two providers that publish a dose — so the only pair whose prices can honestly be compared.
System Labs
Editorial
$149/mo
The only provider we have found that states a milligram quantity for every NAD⁺ product it sells, at a published price, with an FDA disclaimer on the page.
Pick it for: Anyone who wants a fixed quantity and plain regulatory language
Compared against Embody on price, disclosure and evidence.
Embody
Editorial
$99/mo
The cheapest NAD⁺ injection price we have found, and one of the few sellers offering a nasal spray — behind marketing that runs a long way past the evidence.
Pick it for: Anyone optimizing purely on cost per milligram
Compared against System Labs on price, disclosure and evidence.
Our verdict
System Labs states 1000 mg a month at $149. Embody states 500–1000 mg at $99 flat. Those are the only two NAD⁺ sellers we have found willing to put a number on what you get, which makes this the one comparison in the category that resolves on arithmetic rather than adjectives. Embody is cheaper and its dose is a range, so at the bottom of that range the two are close on cost per milligram and at the top Embody wins outright. System Labs carries an explicit FDA disclaimer; Embody's copy claims the product is scientifically proven, which it is not.
Scores and verdicts are computed from our published rubric, which does not read commercial status. Where one provider is a paid partner and the other is not, that changes the label on the card and nothing else.
Before you choose either
Ask both for the dose their monthly price buys — most providers in this category do not publish it, and without milligrams the prices are not comparable. Our cost-per-milligram calculator does the arithmetic once you have the numbers. And read what is known about safety — for injectable NAD⁺, less than you would hope.