How we evaluate products.
Our framework is designed to compare products consistently without turning component-level research or marketing claims into unsupported promises about a finished product.
1. Framework before products
We define the job of the category before selecting a winner. Our core review areas are product transparency, evidence quality, real-world usability, performance, value, brand transparency, and the quality of any evidence used in marketing.
2. Product data we review
- Specifications, materials, ingredients, or components where relevant.
- Directions, setup requirements, and intended use.
- Size, quantity, expected service life, or usage duration where relevant.
- Finished-product testing, certifications, or performance data when genuinely available.
- Return policy, warranty, availability, and meaningful customer-service terms.
- Relevant warnings, limitations, compatibility requirements, and category-specific considerations.
3. Evidence hierarchy
Finished-product evidence is generally more useful than evidence for a single component, ingredient, or technology evaluated under materially different conditions. We identify that distinction whenever it matters. We do not treat the presence of a researched ingredient as proof that the finished serum produces the same outcome.
4. Scoring
A production scoring system should use documented weights that remain consistent within a category. Weights are defined by category and documented before products are ranked. The framework should remain consistent within each comparison.
5. Commercial relationships
Sponsorship, product ownership, common ownership, distribution relationships, or other material commercial interests between the publisher and a featured brand must be disclosed prominently. A relationship should never be hidden inside a footer-only disclosure.
6. Corrections and updates
We should update a ranking when formulas, prices, policies, or key evidence materially change. Readers and brands should have an obvious channel to report errors. Corrections that materially change a ranking should be dated.
7. Health-content boundary
Product comparison content is informational and is not a substitute for medical, legal, financial, safety, or other regulated professional advice where such advice is appropriate.