How we evaluate and rank supplements to ensure your safety and results.
At Top 5 Supplements, we don't just list products. We apply a rigorous 5-pillar evaluation system to filter out marketing noise and find clinical-grade solutions. Every recommendation on this site is passed through the following algorithm:
We analyze the bioavailability and dosage of every ingredient. We prioritize products that avoid "Proprietary Blends" (which hide actual amounts) and focus on standardized extracts that match clinical success dosages.
Safety is non-negotiable. Our algorithm checks for potential interactions, contraindications, and the presence of heavy metals or harmful fillers. We favor brands that utilize Third-Party Testing (NSF, Informed-Choice, or USP).
Does it actually work? We look for double-blind, placebo-controlled human studies. Anecdotal evidence is not enough; our rating scales higher for compounds that have proven statistical significance in metabolic or cellular health.
We verify the source of the research. Our team cross-references citations with databases like PubMed and the National Institutes of Health (NIH) to ensure studies aren't cherry-picked or funded by biased interests.
Finally, we synthesize raw data with feedback from health professionals and verified long-term users to understand the real-world impact on healthspan and vitality.
While we may earn a commission from sales, our editorial rankings are strictly dictated by this algorithm. We never accept payment to rank a specific product higher.