From collagen supplements to alkaline water, detox teas to genetic tests — we examine popular health claims with peer-reviewed research and independent experts.
The billion-dollar collagen industry promises younger skin and stronger joints. But digestive biochemistry poses a serious obstacle to those claims. We reviewed 22 randomized controlled trials.
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Your stomach breaks it into amino acids. Where does the body send those pieces next?
Stomach acid neutralizes everything. What difference does alkaline water actually make?
Your liver is already a perfect filter. What exactly are these teas adding to it?
Is blue light really causing eye strain, or is it simply forgetting to blink?
38 trillion bacteria versus 10 billion CFU. How many survive the stomach acid?
Beyond epilepsy, how much evidence is there? Why did the FDA send letters to 50+ companies?
Can plant stem cells survive in a cream jar? What do they actually do on human skin?
What does "34% higher risk" actually mean? Where did 6.9 million users' data go?
Can caffeine penetrate skin and burn fat? What did the placebo group say?
2,807 hospitalizations, 68 deaths. Why did JUUL pay $438 million in settlements?
Systematic search across PubMed, Cochrane, and peer-reviewed journals.
Every study's funding source and researcher affiliations are noted and disclosed.
Independent specialists in the relevant field are asked for peer review.
Multiple independent RCTs or meta-analyses consistent with the claim.
Inadequate human data for the claim, or existing studies are conflicting.
The claim exaggerates reality, distorts context, or presents an unexplained mechanism.
FactoraHealth is an independent science communication platform. We accept no advertising or sponsorship from supplement, pharmaceutical, or food companies. Our analyses are freely shareable and citable — please credit the source.