Bottle prices become useful only after you know how many labeled servings they buy. Sixty capsules can mean thirty servings or sixty servings, depending on the panel.
This guide uses dated public examples to explain the arithmetic. It does not assign a cost per health improvement, because comparable clinical outcomes are not established for these products.
Divide the actual purchase total by usable labeled servings, then record the amount charged now and at renewal. Keep ingredient identity and efficacy separate from price.
Start with a repeatable formula
Price per labeled serving equals the total product cost divided by the number of labeled servings purchased. For a delivered-cost comparison, add unavoidable shipping and taxes where known. Keep optional checkout protection or add-ons separate so you can see what changed. If a bundle includes products you would not otherwise buy, do not count their advertised retail value as money saved.
A low-cost direct-NAD example
The checked Nutricost plain NAD+ listing showed $19.97 and 60 servings: $19.97 divided by 60 is about $0.33 per serving before additional charges. That is direct NAD, not NR or NMN. The calculation does not establish equivalent absorption or effectiveness to a more expensive precursor. Read the full review before treating price as value.
A single-capsule NMN example
Solaray’s NMN listing showed $38.19 for 60 one-capsule servings, about $0.64 each. Thirty such servings cost about $19.10 by arithmetic, but that does not mean a seller offers a $19.10 monthly plan. Compare Jarrow, where using two tablets instead of one changes how long the bottle lasts.
A multi-month subscription example
Innerbody lists $167 every three months and $311 every six months. Those work out to roughly $55.67 and $51.83 per month. The website’s rounded monthly display should not hide the larger charge. Confirm whether the price renews at the same amount and what cancellation does to an already processed order.
Why cost per milligram can mislead
Dividing by milligrams can help compare the same ingredient in comparable products, but it cannot equate direct NAD, NR, NMN, and niacinamide. Even within one ingredient, the cheapest gram is not necessarily the product with the most useful evidence or quality documentation. A larger amount is not a promise of a larger benefit. Our supplement shortlist keeps those dimensions separate.
Write down five numbers before purchase
Record the amount due today, number of servings supplied, planned renewal date, renewal charge, and any committed minimum period. Check expiry and realistic use before buying bulk. The subscription guide helps with exit terms, while the testing guide covers product documentation. A lower unit price is only useful if the purchase still fits your budget and needs.
Sources & reading notes
Editorial source review updated September 18, 2026. Provider pages describe their own offers; inclusion does not verify a product or its results.
- Nutricost: NAD+ product Manufacturer listing; separate from NMN and NAD-plus-resveratrol variants.
- Solaray: NMN Manufacturer listing: 500 mg per one-capsule serving, 60 capsules. Facility certification is not finished-product efficacy evidence. Checked September 18, 2026.
- Innerbody Labs: NAD+ Support Manufacturer page; related editorial content is not an independent comparison of its own product.
- FDA: questions and answers on dietary supplements Regulatory categories and limits of premarket review.
Educational information, not individualized medical advice. We do not claim medical review or firsthand treatment experience. Read our review standards and commercial disclosure.