Scoring Methodology
Editorial ratings, not guarantees
The Celliara Score is Celliara’s editorial buyer-decision rating. It answers one question: how strong is this purchase for the appropriate buyer? Scores reflect our editorial judgment based on the evidence available at the time of review. They are not guarantees of results, and affiliate relationships do not affect scoring.
The six factors
Calculation
All six factors are combined into a single overall score, rounded to one decimal.
Not every factor carries equal influence on the outcome — some affect the purchase decision more directly than others — but the same six factors and governed scoring method are applied consistently across current Celliara Scores. Unknown evidence is never treated as zero and unknown dimensions are not assigned invented values. When evidence is limited, a factor may still receive a numeric editorial determination based only on the established facts that legitimately resolve the buyer question. Remaining uncertainty is carried separately through Evidence Confidence rather than silently converted into points.
How evidence is handled
FDA and other regulatory records establish only their documented scope; they do not automatically prove efficacy. Category evidence remains category evidence and is not transferred to the exact product. Manufacturer-sponsored, manufacturer-provided, or manufacturer-controlled research is identified accurately and evaluated with its limitations. Firsthand observations require a documented hands-on evaluation.
Evidence Confidence, Safety, and Compliance are tracked separately from the six factors above and never raise or lower the score. They exist to carry information the score itself is not designed to express, such as how strong the underlying evidence is, and any safety or regulatory disclosures.
Approval and independence
Historical scores are not scoring inputs. Affiliate commission, EPC, conversion, revenue, sponsorship, partnerships, and free samples never affect scoring. Buyer-facing facts such as price, warranty, returns, support, and purchase-channel clarity may be considered where relevant to Value for Money or Purchase Confidence. A published score must pass editorial approval before display.