Why exclude practical use instructions?
A protocol can assume a product identity, quantity and quality that the available evidence has not established. The gap becomes more serious when a vial is research-labelled, unauthorised or obtained through an unverified supply route.
The site's role is to show the gap between the claim and the evidence, including how the evidence method records unknowns.
Why exclude supplier rankings?
A seller comparison would pull the publication into the market it is assessing. Referral income, paid inclusion and discount codes would also create incentives to soften evidence and safety language. The funding and conflicts policy excludes those relationships.
Why exclude personalised medical advice?
A safe individual assessment requires information and professional responsibility that a general publication does not hold. An article or uploaded certificate cannot replace clinical history, examination, diagnosis or a regulated professional's duty of care.
Why exclude evasion content?
Athletes and support personnel need current status information, exact substance naming and effective dates. Detection-window or masking guidance would serve a different purpose and will not be published.