Calcometry

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Beauty business

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Beauty pro pricing and bowl math for nail techs, estheticians, lash artists, and hair colorists: service menu pricing from product cost, time, overhead, and margin; lash and wax pricing defaults; and hair color or bleach developer ratios (1:1, 1:1.5, 1:2). Not cosmetology advice — follow product labels and local regulations.

Service pricing has to cover more than product and chair time. Turnaround between clients, sanitation, consultation, rebooking admin, and no-shows all consume hours you cannot bill directly, so a price built only on the appointment length will quietly underpay you. If you rent a booth or run a space, divide fixed monthly costs across a realistic number of services rather than an optimistic full book. On the mixing side, ratios are a starting point only: manufacturers specify their own developer proportions, processing times, and volumes for each product line, and those instructions override any general figure — particularly for lightener, where deviating can damage hair or skin. Nothing here is cosmetology instruction, and licensing rules and permitted products differ by state and country.

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