Primary sources first.
Regulators, standards bodies, peer-reviewed research, official product pages and supplier documentation carry different jobs and limits.
Trust is part of the interface
What is sourced, what is sensory, and what is commercial.
Sources and current product facts are checked for the claim they support. When products, links or relationships change, the relevant page is updated.
Keep the exact version attached.
Product names, concentrations, formats, note lists, ownership and availability are checked against the exact product being discussed.
Education remains the product.
Shopping links remain optional, separately disclosed and removable without breaking the educational value of a page.
Original media is identified.
Author-owned footage and photography are used as evidence or sensory illustration; brand campaign imagery is not silently repurposed.