Our methodology for product facts, ingredient evidence, source hierarchy, evidence directness, updates and corrections.
Our methodology is claim-dependent: different claims require different evidence. A current price is best verified from the current order page; a claim about ingredient effectiveness requires clinical research; a claim about regulatory status requires a regulatory source. We don't treat all claims as if they need the same kind of proof.
We generally prioritize systematic reviews and meta-analyses first, then other controlled human research, then mechanistic or preclinical (lab or animal) evidence last. Customer testimonials are not treated as clinical evidence, regardless of how positive or numerous they are — see how we label testimonial content in our Editorial Policy.
You'll see these evidence labels applied throughout our Ingredients page, ingredient by ingredient.
Before publishing, we specifically check whether our own wording has become stronger than the underlying source supports. A clinical trial finding "reduced urinary symptom scores" should not be rewritten on our site as "cures prostate enlargement." This check is applied on every page referencing ingredient research, not just once at launch.
We don't assume our own previously published pages are correct simply because we wrote them. When we make major updates, we audit the page as if a different, unaffiliated publisher had written it — checking claims against current sources rather than trusting our past conclusions by default.
We prioritize primary product information, regulatory sources, peer-reviewed research, and recognized clinical guidance. Manufacturer claims are not treated as independent clinical evidence.
Editorial owner: ViriFlow Editorial Team · Last reviewed: July 10, 2026
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