Plumb
C+

Health product reviews

Innerbody Research

Innerbody Research, Inc.

Hands-on tester Free to read Visit Innerbody Research ↗

Innerbody claims genuine hands-on testing and publishes cleaner disclosures than most affiliate review sites, but the undisclosed structural conflict of owning Innerbody Labs while ranking competing supplements, combined with affiliate commissions that reward featuring products with partner programs, keeps its independence meaningfully compromised.

What it's really for Drive purchase decisions through ranked best-of lists, earning affiliate commissions on resulting sales

What our grade covers The grade on this page is about Supplements, vitamins, at-home health tests, online pharmacies, and wellness services, not everything the site does.

Medium Scoring Confidence Mostly sourced, but a detail or two still needs a primary source, so the grade could shift slightly.

Follow the money

Innerbody's ad-policy page states the site earns revenue from "advertisements and partnerships, such as referral fee affiliate programs." When a reader clicks through and purchases a ranked product, Innerbody receives a commission from the vendor — creating a financial incentive to rank and feature products with active affiliate programs above those without.

Source →
Operating since
2018 (8 years) · source
What it costs you
Free to read The reviews are free to read.
How they make money
Affiliate commissions on reader purchases plus display advertising; supplemented by (or conflated with) the Innerbody Labs owned-supplement brand.
What they do
Staff researchers use a stated "secret shopper" approach to buy and test supplements, at-home health kits, online pharmacies, and wellness services, then publish ranked best-of lists alongside detailed written reviews. The site claims 80,000+ hours of hands-on testing and medical-professional review of all content.
What to watch for
Does not disclose whether every tested product is purchased or received as a sample. Operates Innerbody Labs, its own supplement brand, which it promotes on the same platform where it ranks third-party competitors — a structural conflict of interest not addressed in the published disclosure pages. Ranking criteria are described qualitatively but no quantitative scoring rubric is published, so rankings are not independently reproducible.
Composite score
2.60 / 5.00 → grade C+

How the grade was reached

Independence · 30% weight 2 / 5

Does the site take money from the very entities it ranks? Pay-for-placement, vendor-funded data, and affiliate commissions all pull this down. The less the ranking can be bought, the higher the score.

Evidence basis · 30% weight 3 / 5

What is the ranking actually built on? Hands-on testing scores highest, then verified first-hand reviews, then opinion or popularity surveys and self-reported figures, then pay-to-rank, which scores lowest.

Method transparency · 20% weight 3 / 5

Is the methodology published, specific, and reproducible? Can a reader see how a given rank was reached, or is it a black box?

Conflict disclosure · 10% weight 2 / 5

Are commercial relationships, sponsorships, and affiliate arrangements disclosed clearly and near the rankings themselves, rather than buried?

Manipulation resistance · 10% weight 3 / 5

How hard is it to game? Controls against fake reviews, solicited reviews, and vendor gaming raise this; an open box anyone can stuff lowers it.

Evidence

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