SalonTechnologies patented Hair Color Formulating software will automatically calculate a hair color formula with step-by-step instructions, including the amount of color and developer, timing, and when to double process. Our formulas will calculate for underlying warmth and full grey coverage for "Perfect Color Every Time." Now any stylist, student, or educator will be able to formulate like a seasoned professional. These formulas are only for reference and should not replace formal education. Our formulations are to be used with the Alfa Parf permanent colorline. SalonTechnologies is an independent company with no affiliation with any hair color company.*******This app is only for calculating AlfaParf permanent color formulas. If you would like to manage clients, appointments, products, services, and point-of-sale, look for Personal Salon Assistant!