Four Reasons

Think about the hair needing to be more white than yellow, otherwise it will turn green

I always use it after the shower and the product leaves my scalp feeling really fresh! I will buy it again if I don't find anything else to test!💕

I did a failed money piece and used this toner to get my natural hair color back where it went wrong, as well as in the rest of the hairline. (In the lengths, I took a different toner, level 9.) This toner magically removed all the ugly yellow spots, and it turned out to be like a super nice cool-toned balayage! I'm super happy with the product, which has now lasted for 3 months.