Definition: In this task, you're given reviews from Amazon's products. Your task is to generate the Summary of the review.
Input: Very disappointed. I was excited to try a natural way to dye hair and a product that CLAIMED to be able to dye dark hair fun colors. No surprise that unbleached hair will not dye a fun color. I thought blue smoke would be a nice dark blue on my natural dark brown hair. After leaving it in for 2 hours (recommended by the website) I rinsed it out and got jet black with a couple blue patches where my hair has been bleached in the past. Needless to say I will not be wasting my money on this again. Go to Sally’s and buy bleach and ion semi-permanent color if you have dark hair. If you’re blonde this product might work for you.

Very disappointed. I was excited to try a natural way ...