Several years back I was purchasing my shampoo in the drug store or wherever. I didn't believe the need for salon brands. This after I was spending a lot of money dying my hair blonde at those salons. Here's what I noticed - colour went brassy and my scalp got really greasy and my ends were really dry. I finally decided to invest in my investment and became a Kerastase believer. My colour holds better and lasts longer and my scalp is not greasy. Breakage is still an...