Our Research Methodology
How We Evaluate Supplements
At CreatineFinders, we evaluate creatine supplements across six dimensions to provide objective, evidence-based recommendations:
- Ingredient Purity: We assess the source and quality of creatine used, favoring products with verified creatine sources such as Creapure® and those with clean, minimal ingredient profiles free of unnecessary fillers or proprietary blends.
- Third-Party Testing: We prioritize products with NSF Certified for Sport, Informed Sport, or other independent lab certifications. These certifications verify that products contain what they claim and are free from banned substances.
- Value per Serving: We calculate the true cost per serving for every product, accounting for serving size, creatine content per serving, and total servings per container. The cheapest product isn't always the best value.
- Brand Transparency: We evaluate how clearly brands communicate their manufacturing practices, sourcing, testing protocols, and ingredient origins. Transparent companies receive higher marks.
- Clinical Evidence: We assess whether products provide clinically effective doses based on published peer-reviewed research. The standard evidence base supports 3-5g of creatine monohydrate per day.
- User Experience: We consider real-world factors including taste, mixability, packaging quality, and consistent availability. These factors affect long-term compliance.
Our Rating System
Each product receives a rating from 1.0 to 5.0 based on a weighted scoring system:
- Ingredient Purity & Quality (25%): Source verification, creatine form, absence of fillers
- Third-Party Testing (20%): Certification level and testing rigor
- Value per Serving (20%): Cost-effectiveness relative to quality
- Brand Transparency (10%): Label clarity, manufacturing disclosure
- Clinical Evidence (15%): Dose efficacy, form research backing
- User Experience (10%): Mixability, taste, convenience
Editorial Independence
Our reviews and rankings are based entirely on our independent analysis. No brand can pay for a higher rating or preferential placement. We purchase products ourselves or receive samples without any conditions attached to our evaluations.
Our research team includes certified sports nutritionists and professionals with expertise in clinical nutrition and exercise science. We update our analyses quarterly to reflect new products, reformulations, and changes in pricing or certification status.
All factual claims in our guides and reviews are supported by peer-reviewed research published in recognized scientific journals. We cite our sources and encourage readers to consult the original literature.
Affiliate Disclosure
CreatineFinders participates in affiliate programs, including the Amazon Associates Program. This means we earn commissions from qualifying purchases made through links on our site at no additional cost to you.
These commissions help fund our operations, including purchasing products for analysis, maintaining this website, and compensating our research team. Affiliate relationships never influence our ratings, rankings, or recommendations.
When you click a “Check Current Price” or similar button on our site, you may be redirected through an affiliate link. You pay the same price regardless of whether you use our link or navigate to the retailer directly.
We are committed to transparency and compliance with FTC guidelines regarding affiliate marketing disclosures. If you have questions about our affiliate relationships, please contact us.
Our Standards
We hold ourselves to the following editorial standards:
- All product evaluations follow the same standardized methodology
- We disclose all affiliate relationships clearly and prominently
- We update analyses when new evidence or product changes emerge
- We correct errors promptly when identified
- We do not accept payment for favorable reviews or rankings
- All health-related claims reference peer-reviewed scientific literature
Contact
Have questions about our methodology, want to suggest a product for analysis, or need to report an error? We welcome your feedback at hello@creatinefinders.com.