this is a wonderful product, it leaves your hair feeling nice and soft you will love it. Its not a must to use a deep conditioner after but I do. I use 10 in 1 conditioner, I then go under the hooded dryer for 45 minutes and my hair is the bomb. This is only if I have time which is quite often. I ususally use the island spice creme before I use my GPB and that makes your hair even softer.