dont forget to allergy test [SEP] before using this product like it says in the directions and do an allergy test first i made the mistake of not doing that because i always dye my hair and eyebrows and thought i would be fine i had never used this product before and was gifted with a ghastly sight the next day i had a terrible allergic reaction and my whole face swelled up with boils not only that but my eyebrows were bright red bumpy and itchy my eyebrow hair all fell out as well my doctor said it was a bad chemical burn now almost weeks later my eyebrows are still somewhat red i kmow this is my own fault and not the products but i just wanted to warn others