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When I was in cosmetology school one of the first things I got in trouble for was trying to sneak in my favorite shampoo and conditioners.
Since I went to a Paul Mitchell cosmetology school all students and instructors were only allowed to use Paul Mitchell brand products.
While we were in school we were taught to eyeball how much shampoo to used based on the client’s hair type, texture, length and condition.
We also were taught there’s a fine line between using too much and not enough…