# Labdoor

> Labdoor is an independent supplement testing company. It buys top-selling vitamins, supplements,
> protein powders and energy drinks off retail shelves, sends samples to FDA-registered analytical
> laboratories for chemical analysis of active ingredients and contaminants, grades each product on
> Label Accuracy, Product Purity, Nutritional Value, Ingredient Safety and Projected Efficacy, and
> publishes the resulting rankings and reports for free.

Labdoor publishes no public developer API, SDKs, developer portal, or API documentation as of
2026-07-19. There is an `api.labdoor.com` origin serving the first-party web application, but it is
undocumented and not offered as a public product. Treat the public website below as the only
addressable surface.

## Rankings and reports

- [All rankings](https://labdoor.com/rankings): Ranked, scored product lists by supplement category.
- [Fish oil rankings](https://labdoor.com/rankings/fish-oil)
- [Probiotics rankings](https://labdoor.com/rankings/probiotics)
- [Multivitamins rankings](https://labdoor.com/rankings/multivitamins)
- [Protein rankings](https://labdoor.com/rankings/protein)
- [Prenatal vitamin rankings](https://labdoor.com/rankings/prenatal-vitamins)
- [Creatine rankings](https://labdoor.com/rankings/creatine)
- [Pre-workout rankings](https://labdoor.com/rankings/pre-workout)
- [BCAA rankings](https://labdoor.com/rankings/bcaa)
- [NAD+ rankings](https://labdoor.com/rankings/nad)
- [Upcoming tests](https://labdoor.com/rankings/upcoming)
- [Brands](https://labdoor.com/brands)

## Methodology

- [About Labdoor](https://labdoor.com/about): What Labdoor is and how it operates.
- [Testing process](https://labdoor.com/about/testing): How products are purchased and analyzed.
- [Scoring process](https://labdoor.com/about/scores): How Quality scores are calculated.
- [Business model](https://labdoor.com/about/business-model): How Labdoor funds free reports.
- [Press](https://labdoor.com/about/press)

## Enterprise

- [Labdoor Enterprise](https://labdoor.com/enterprise): Services for manufacturers.
- [Certifications](https://labdoor.com/enterprise/certifications)
- [Custom testing](https://labdoor.com/enterprise/custom-testing)
- [Manufacturer partners](https://labdoor.com/enterprise/manufacturer-partners)

## Account and legal

- [Sign up](https://labdoor.com/account/signup)
- [Log in](https://labdoor.com/login)
- [Contact](https://labdoor.com/contact-us): contact@labdoor.com
- [Terms of use](https://labdoor.com/about/legal/terms-of-use)
- [Privacy policy](https://labdoor.com/about/legal/privacy-policy)

## Machine-readable

- [Sitemap index](https://labdoor.com/sitemap_index.xml): Static URLs, guides, brands and product reviews.
- [robots.txt](https://labdoor.com/robots.txt)
- [APIs.json profile](https://raw.githubusercontent.com/api-evangelist/labdoor/refs/heads/main/apis.yml)