How We Review Supplements

Last updated: May 2026 · Applies to all content published on BestSupplements.best

Editorial Independence Statement

BestSupplements.best maintains a strict separation between its editorial function and its commercial function. Our editorial team sets product rankings, review scores, and content positions independently of any affiliate relationship, advertising arrangement, or brand partnership.

In practical terms, this means:

• Supplement rankings are determined by our editorial scoring rubric before any affiliate relationship is considered
• No brand, manufacturer, or distributor has the ability to purchase a higher ranking, review score, or featured placement
• We have declined affiliate relationships with products that did not meet our quality standards
• We have published negative or qualified reviews of products with which we maintain affiliate relationships
• Our business development team operates separately from the editorial team and cannot direct editorial decisions

How Products Get Selected for Review

Products are selected for review based on consumer search demand, market presence, and coverage gaps in our existing content. We do not accept payment to review specific products. Our selection criteria include:

• Search volume: Products with significant consumer interest and search demand are prioritised
• Market presence: Products sold by established manufacturers with verifiable contact information and documented manufacturing facilities
• Reader requests: Supplements frequently mentioned in reader correspondence or community discussions
• Category coverage: Products that fill gaps in our existing category coverage
• Exclusion criteria: We do not review products from anonymous manufacturers, products with no verifiable contact information, or products with active FDA enforcement actions at time of review (these are documented in our Safety Database instead)

Our 5-Criterion Scoring Rubric

Every supplement reviewed on BestSupplements.best is evaluated across five weighted criteria. The total score determines the product’s editorial rating. Criteria weights reflect our assessment of what matters most to supplement safety and efficacy.

Evidence Grading System

We apply a three-tier evidence grading system to individual ingredients and supplement formulas. This system is used consistently across our ingredient library, supplement reviews, and comparison guides.

Ingredients with Grade C evidence are not disqualified from our coverage — but we are explicit about the evidence standard when discussing them, and we do not describe them as "clinically proven."

Conflict of Interest Policy

BestSupplements.best has the following standing conflict of interest rules that apply to all editorial staff:

• No editorial team member may hold a financial interest (equity, employment, consulting) in any brand reviewed on this site
• Editorial team members who have a personal relationship with a brand or manufacturer must declare this and recuse themselves from that brand’s review
• Editorial rankings are finalised before affiliate partnerships are established with any product
• Products may not pay to be reviewed, pay to improve their review score, or pay to suppress publication of a review
• When sample products are provided for evaluation, this is disclosed in the review and has no bearing on the editorial score

Affiliate Relationship Disclosure

BestSupplements.best earns affiliate commissions on qualifying purchases made through links on this site. All affiliate links are identified at the point of the link with the label “Affiliate link · Sponsored.”

Key disclosure points:

• Affiliate commission rates do not influence editorial rankings or review scores
• We may maintain affiliate relationships with products we have rated below our top picks
• Some sections of this site — including the Supplement Safety Database — contain no affiliate links by design
• Full affiliate disclosure is available at /affiliate-disclosure/

Review Frequency & Content Freshness

Supplement formulas change. New clinical evidence emerges. Regulatory actions alter the landscape. Our content update schedule reflects this:

• Top-ranked product reviews: Reviewed and updated every 6 months, or immediately when a formula change is announced
• Ingredient guides: Updated annually or when significant new clinical evidence is published
• Safety database: Updated whenever a new FDA recall, Prop 65 filing, or significant enforcement action is confirmed
• Comparison guides: Updated annually or when new comparative trials are published

All pages display a “Last Updated” date. The date reflects a substantive content review, not minor formatting changes.

Medical Review Process

Content in our supplement reviews, ingredient guides, dosing guides, and condition pages is reviewed by qualified health professionals before publication. Our Medical Review Board includes a pharmacist, a registered dietitian, a physician, and a nutritional biochemist.

Medical review ensures:

• Drug-supplement interaction warnings are accurate and complete
• Ingredient safety information meets appropriate medical accuracy standards
• No content overstates therapeutic claims or implies that supplements can treat, cure, or prevent disease
• Dosing information is consistent with established clinical reference ranges

Correction & Update Policy

We correct factual errors promptly. Our process:

1. Errors identified by readers, reviewers, or our own monitoring are assessed within 5 business days
2. Confirmed factual errors are corrected and a correction note is added to the top of the affected page, including the correction date and nature of the change
3. Minor updates (broken links, outdated pricing) are made without a correction notice but with an updated “Last Updated” date
4. Substantive formula changes by a manufacturer trigger a full re-review of the affected product

To report a factual error, contact us at /contact/.

Medical Disclaimer

All content on BestSupplements.best is produced for educational and informational purposes only. Nothing on this site constitutes medical advice, diagnosis, or treatment. Supplement information should not be used as a substitute for consultation with a qualified healthcare provider.

Always consult a licensed physician or pharmacist before starting any supplement, especially if you:

• Are pregnant, breastfeeding, or trying to conceive
• Have a diagnosed medical condition
• Take prescription medications (drug-supplement interactions are documented in our drug interaction tool)
• Are under 18 years of age

Statements on this website have not been evaluated by the Food and Drug Administration. Products reviewed are not intended to diagnose, treat, cure, or prevent any disease.