The IV Doc vs System Labs
The most expensive way to buy NAD⁺ against one of the cheapest, with both sellers publishing a dose — so the gap can be measured exactly.
The IV Doc
Editorial
$799/mo
The only NAD⁺ IV service we have found that publishes a milligram dose alongside its price, which is also what makes its cost per milligram so stark.
Pick it for: Someone who wants a supervised in-home infusion and is not buying on cost
Compared against System Labs on price, disclosure and evidence.
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 the most NAD⁺ per dollar from a seller that states the dose
Compared against The IV Doc on price, disclosure and evidence.
Our verdict
The IV Doc charges $799 for a stated 250 mg. System Labs charges $149 for a stated 1000 mg. That is roughly $3.20 a milligram against roughly 15 cents — a spread of about twenty-one times, from two sellers' own published figures. Neither format has controlled outcome trials. What the premium buys is a clinician in your home and intravenous delivery, which is a real service; it is not evidence of a better result. If you want the drip, book it knowing that.
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Ask both for the dose their monthly price buys — most providers in this category do not publish it, and without milligrams the prices are not comparable.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.