Calculators

About calculators

A $90 serum that lasts 9 months costs $0.33 a use. A $20 serum that lasts 3 weeks costs $0.95 a use. The Beauty Calculators strip the sticker shock and the marketing math out of skincare so you can see what you actually spend per application, per month, per year — and where to cut.

No accounts. No "free trial." Just inputs, math, and recommendations you can keep, downgrade, or cancel against.