Interesting product [SEP] I purchased this product as I color my hair blonde and it tends to get brassy in the summer. After receiving it, I got this email saying how to use it, and making it sound like it would really alter my hair color, turning it silver, and so I didn't use it. Yesterday (weeks later), I got an email asking me to review it, so today I decided to try it. I opened the box and the bottle was sealed in plastic and taped. There were gloves with it. I was even more nervous! LOL. I gave my hair a quick wash in the shower (no gloves) and I did have to spray down the whole area, as everything was purple, but it rinsed right off. My hair felt squeaky afterwards (I did not condition) and when I dried it, I did notice that the brassiness was gone. I only left it in my hair for a minute or so while washing. I guess I was scared for nothing. I think I would use it once a week to keep the tone cooler. Scared for nothing, as usual!