I was born with extremely thick cradle cap and discovered later that I would get large welts (largest was a bit bigger than a half dollar) on my scalp that would itch. When scratched off, a clear oily liquid would ooze from the opening down my neck, soaking my hair. My mother would always have me wash my hair, scratch everything open, and pour rubbing alcohol on my scalp -- which stung but it made it go away for months before I would have a relapse. For a long time I thought it was simply a stronger form of dandruff, unsuccessfully treating it with Head & Shoulders (which left my hair greasy, frizzy, and feeling like straw) or coconut oil soaks (which softened my hair but didn't reduce dandruff). It wasn't until later that I discovered the real name for this (seborrheic dermatitis) and that I have it genetically from my mother, whom treated it for years with Listerine or rubbing alcohol (as she had me do for years). However the alcohol trick stopped working when I entered my 20's and I would have to suffer through this until it cleared or scabbed over from being scratched too much. The last "break out" was too much -- all over the scalp, tiny bumps leaking and itching -- so I started looking into products that would help. As I also once suffered from acne and have dermatitis in my ears, I've long ago discovered the joys of salicylic acid (good for treatment of almost any form of dermatitis) in a world where I am allergic to even the smallest amounts of benzoyl peroxide.I ordered this last week, received it Friday, and began immediately. I have only been using Paul Mitchell's Tea Tree Hair and Scalp Treatment for 3 days and there is already a marked difference in my scalp. All the healing or developing patches have disappeared, leaving my scalp smooth and soft under my hair. It's also cut back on the dandruff I lived with for a long time as well. The first two days I used it as a shampoo rather than conditioner and, while it did leave my hair a little oily, it left my hair soft and reduced my scalp itchiness. On the third day I washed my hair with my typical cheap shampoo, then used the Scalp Treatment as conditioner, wrapped it up in my turbie twist towel and left it in for 5-10 minutes. My scalp got cold and tingly (just like it's supposed to), then I rinsed thoroughly and dried my hair completely. No oily look, completely manageable, softer than a kitten. Today I only shampooed and left out the Scalp Treatment -- my scalp and hair still feel soft and smell vaguely of peppermint, only minor itchy spots left to treat tomorrow. I'm hoping to use this a couple times a week to keep the dermatitis at bay. Thanks, Paul Mitchell!Please note that the product does look and smell a lot like toothpaste. If you don't like the smell of peppermint, this product is not for you. Be sure to massage it into wet hair/scalp and, for best results, leave in for the full 5 minutes (I recommend wrapping your head in a towel).