THE CAST publishes a K-beauty unit-price comparison guide
The new guide shows how to calculate price per 10 ml and interpret the result.
Published
THE CAST has published a guide to calculating price per 10 ml when comparing Korean beauty product listings online.
A practical price calculation
The guide uses two 50 ml listings and price snapshots from 10 November 2026 to demonstrate the arithmetic. It explains that a price-per-volume figure alone does not measure suitability or performance.
Other costs and units
Shoppers should check the final checkout total, shipping, taxes and discounts as well as the current listing. The guide cautions against converting grams into millilitres without density information.
About this update
This first-party update describes a THE CAST shopping guide. Product prices and availability can change.