Formulating/testing Hair Color
Does anyone have experience with developing and testing hair color dyes? I’m interested in what the testing cycle is?
I am in start up mode and have a chemist that is developing the line (he says 6-9mos. and stability testing another 3mos.) and then will hand it off to me to formulate our unique shades and do the comprehensive testing.
I have been a colorist for over 20 years and look forward to creating the shades, but the testing phase is still a bit fuzzy. Could anyone help shed some light on how long that process may take before releasing it to our beta test customers? TIA!
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