Our Review Methodology

Transparent, evidence-based evaluation criteria that ensure you get the most accurate and reliable supplement reviews.

How We Review Supplements

Every supplement review on Supplementium follows our rigorous, standardized methodology. We evaluate products across four key dimensions, each contributing to an overall score that helps you make informed decisions about your health.

Our scoring system is completely transparent and based on objective criteria. We never accept payment for reviews, and our team maintains complete editorial independence.

25%

Safety Score

We evaluate the safety profile of each ingredient based on clinical research, FDA warnings, and potential interactions.

  • • Clinical trial safety data
  • • Known side effects and contraindications
  • • Drug interaction potential
  • • Dosage safety margins
  • • Third-party testing for contaminants
30%

Efficacy Score

The most important factor - does the supplement actually work? We analyze peer-reviewed research to determine effectiveness.

  • • Number and quality of clinical trials
  • • Effect sizes and statistical significance
  • • Consistency across studies
  • • Real-world effectiveness data
  • • Bioavailability and absorption rates
25%

Quality Score

We assess manufacturing quality, ingredient sourcing, and whether the product contains what the label claims.

  • • GMP certification and facility standards
  • • Ingredient purity and potency
  • • Label accuracy and transparency
  • • Independent third-party testing
  • • Shelf stability and bioavailability
20%

Value Score

We calculate cost-effectiveness by comparing price per effective dose across similar products in the market.

  • • Cost per effective dose
  • • Comparison with similar products
  • • Serving size and bottle quantity
  • • Subscription and bulk pricing options
  • • Overall cost-benefit ratio

Our Research Standards

Evidence Hierarchy

1Systematic reviews and meta-analyses
2Randomized controlled trials (RCTs)
3Cohort and case-control studies
4In vitro and animal studies

Study Quality Criteria

  • • Sample size and statistical power
  • • Study design and blinding
  • • Conflict of interest declarations
  • • Peer review and journal impact factor
  • • Replication and consistency

Understanding Our Scores

0-2
Avoid

Safety concerns or no evidence

2-4
Poor

Limited evidence or quality issues

4-6
Fair

Some evidence, acceptable quality

6-8
Good

Solid evidence and quality

8-10
Excellent

Strong evidence, high quality

Our overall score is a weighted average of all four categories, providing a comprehensive assessment of each supplement.

Editorial Independence

What We Don't Accept

  • • Payment for positive reviews
  • • Free products from manufacturers
  • • Influence from advertisers
  • • Sponsored content or native advertising
  • • Affiliate marketing that affects scores

How We Maintain Independence

  • • Purchase all products for testing
  • • Separate editorial and business teams
  • • Public disclosure of any conflicts
  • • Regular team training on bias
  • • Peer review of all evaluations

Questions About Our Methodology?

We're committed to transparency in our review process. If you have questions about how we evaluate supplements or suggestions for improvement, we'd love to hear from you.

Get in Touch
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