Methodology

This page explains how we research and write our sourcing guides.

How We Find Sources

1. Manufacturer official documentation and technical data sheets.
2. Official manuals, standards and institutional references.
3. Reputable distributors and technical publications.
4. Community and forum material — used only for pain points, search phrasing and edge cases, never as the sole source for key specifications, safety or regulatory conclusions.

How We Compare Specifications

• We compare the assay method, not only the stated purity.
• We review batch-specific COA and SDS availability.
• We note when a listing is a typical range rather than a fixed value.

How We Handle Pricing

• We use cautious wording: approximate, from, typical listed range.
• We never promise the lowest price or guarantee any price.
• Prices change; when they are volatile, we focus on the cost factors instead.

How We Update Articles

• Articles may carry an updated date when research changes materially.
• We do not republish unchanged text under new dates.

Facts and Claims

• We never fabricate test results or certifications.
• We never invent expert identities.
• Key conclusions require sources; unverifiable claims are either flagged as such or removed.