I used it twice , but my hair is pin straight. Back in the( "80's", the decade of big permed hair) I tried to get a perm 5 times. These were professionally applied not the home perm stuff, and not one of them took, not even a wave. I paid 39.99 for this curling, and that was after a friend who owns a beauty boutique gave me a forty percent discount and it is just sitting in my vanity, so I thought someone here might be interested.