System Labs vs iThriveMD
Two injections, the same published 1000 mg, a hundred dollars apart — the cleanest like-for-like comparison on the site.
Updated
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System Labs
Partner
$149/mo
States milligram quantities and prices for its reviewed NAD⁺ injection and nasal spray, with an FDA disclaimer on the page.
Pick it for: The same published dose for a hundred dollars less
iThriveMD
Editorial
$249/4 wks
One of the few sellers that publishes both a milligram dose and a plain FDA disclaimer, at the top of the price range, with sublingual wafers alongside the injection.
Pick it for: Fuller regulatory disclosure, or membership pricing you already qualify for
Our verdict
Both state 1000 mg a month, which almost nothing else in this category does, so this is the rare case where two prices mean the same thing. System Labs is $149; iThriveMD is $249 month-to-month. That is about 15 cents a milligram against 25. iThriveMD carries fuller FDA language and pushes discount tiers that close the gap, but a promotional price is not the standing one — and on the standing one, the same stated quantity costs $100 more.
What actually separates them
System Labs and iThriveMD state different things about published price. Everything else they publish, they publish the same way.
Over twelve months that is about $1,788 at System Labs against $3,237 at iThriveMD — a difference of $1,449. One of them bills every four weeks rather than monthly, which is a thirteenth charge the price tag does not mention.
| System Labs | iThriveMD | |
|---|---|---|
| Published price | $149/mo | $249/4 wks |
Where they differ on what they tell you
Price is the easy comparison and often the least useful one. These are the places where one of these two answers a question the other leaves open.
- The advertised price
- System Labs leads with first month only — $89 against $149, while iThriveMD leads with six months paid up front — $124.50 against $249.
- Routes offered
- System Labs also sells a nasal spray, while iThriveMD also sells an oral capsule — which matters if you change your mind about the format later.
- The gap, over a year
- On the injection both sell, System Labs at $149 against iThriveMD at $249 is 67% — about $1200 a year, if you stay on either for twelve months and neither price moves.
What neither of them tells you
A comparison that only reports differences implies everything else is settled. Here it is not.
- Both sell a compounded drug and neither names the pharmacy that compounds it.
- Neither states whether any bloodwork is included, or what it would cost.
- Neither publishes which states it can ship to.
- Neither displays a LegitScript certification.
Before you choose either
Unusually, both sellers publish a milligram dose, so their prices can be compared directly rather than taken on trust. Run both through our cost-per-milligram calculator before you decide — a lower monthly price at a smaller dose is not the cheaper option, and in this category the gap between sticker price and cost per milligram is where the money actually is.
Our take is computed from a published rubric that does not read commercial status, and what is known about safety applies to both of them equally.