Hair Color Formula Book

What did you mix last time? Hair Color Formula Book keeps every client's color formula, visit by visit and to the gram, and does the math for today's bowl. EVERY VISIT, KEPT • Save what you actually mixed to a client straight from the result, with the amounts already filled in • See every past visit with its grams, ratio and processing time • Compare the last two visits and see exactly what changed • Share a clean PDF formula card, or export your formulas to CSV TODAY'S BOWL, EXACT • Bring back the last formula and scale it to today's bowl weight • Turn a target bowl weight into grams for every shade and the developer • Use the ratio from your own product's instructions: 1:1, 1:1.5, 1:2 or custom • Split up to eight shades by percentage • Over-poured? Enter what is already in the bowl and get the proportional additions • Keep your go-to mixes as templates AT THE CHAIR • Processing timers that alert you when time is up, up to four at once YOURS, ON YOUR PHONE Works offline. No account, no cloud, no ads. Your clients and formulas stay on your device, and you can back them up to a file any time. Made for independent colorists, booth renters and salon suites. Available in English, Spanish, Portuguese, German and Japanese. Hair Color Formula Book is a math and record-keeping tool. It does not choose products, developer strength or processing times, and it does not replace product instructions, manufacturer guidance, training or professional judgment. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/