Instruct: Classify the given Amazon review as either positive or negative.
Query: good product

I used this when I dyed my hair a light ash blonde. It works well to brighten blonde hair and tone down the yellow/brassy tones. Keep in mind though that it won't take place of a toner. It's not that strong. It is simply brightening. If your hair is extremely yellow or brassy, it will only make minimal difference. Also, I wouldn't use it every day. It can be quite drying and I notice my ends became brittle if I used it too much. It shouldn't turn your hair purple if you wash it out thoroughly. Overall a good product especially for the price.