How Long Does Your
Beauty Product Last?
Calculate cost per use, see how many months your products will last, and find the best value for your budget. Data-driven guides for 50+ popular beauty products.
Cost Per Use
That $50 foundation might actually cost you $0.40 per use. Find out the real value of every product in your collection.
Product Longevity
See exactly how many days, weeks, and months your products will last based on your usage frequency.
Expiration Tracking
Know when to replace your products. Every guide includes PAO (Period After Opening) information and storage tips.
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Expiration Guides
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