For every hair color purchase supply 1 pr. gloves + measure cup w/ all color orders, I strongly encourage everyone to run a Strand Test, on any 'new' color formula you are applying - you may request a couple complementary foils for this, in the check-out page there is a "NOTE" box where you may attach notes regarding order if necessary.
The difference in Professional hair color and non-professional is S-I-M-P-L-Y....the 'quality' of the ingredients that you are 'allowed' to use . The way they work.... the "science" is exactly the same. There is no such thing as 'professional hair color' that is a completely 'different technique' a 'different science' than what you can purchase at your local Sally's or Beauty Supply. They lead you to believe that, but I am here to tell you that does not exist. You should be allowed to purchase the good quality products. You are already using the exact same procedure to color your hair as the Hair Colorist in your local Salon.