Data Methodology and Corrections

Operator

CreatinePrices.com is operated by Chase Miller. Questions and correction reports sent to info@creatineprices.com go to a monitored inbox.

Collection and freshness

Discovery and current product data use Amazon's Creators API. Price feeds are scheduled twice daily. Always confirm final price and availability on Amazon.

Serving and dose evidence

A comparison requires an explicit serving-count statement plus an explicit per-serving, per-scoop, or per-dose creatine statement. Conflicting serving claims remain unverified instead of choosing one. Container weights, capsule or gummy counts, and per-unit claims are not treated as serving counts or doses. When a trustworthy total package weight is available, claims whose total creatine would exceed that weight are rejected.

Formula

price ÷ (servings × creatine grams per serving) gives cost per gram. The price index multiplies that result by five.

Corrections

Email info@creatineprices.com with the product URL or ASIN, disputed field, and manufacturer label/source. Evidence is reviewed before a correction is accepted.

Editorial and commercial policy

Rankings follow displayed cost data and are not changed for commission rate. Affiliate links are marked as sponsored. The comparison measures price efficiency, not health outcomes or product quality.

Update log

• August 2026: added retained serving evidence, conflict rejection, package-mass checks, and fail-closed frontend comparisons.
• August 2026: replaced assumed doses with high/medium/unverified evidence states.
• August 2026: added pre-publication quality gates, dedicated attribution, current benchmarks, and indexability thresholds.