After using this for the past 2-3 weeks I can say this is my favorite product from their line. I love the way it adds a nice shine to my hair and the way it hydrates and refreshes my wavy hair as well as my dry scalp. I use this after my shower on slightly damp hair before easily detangling and going to blow dry my hair. The fact that this biobrew serum also acts as a heat protectant has been a huge plus to protect my hair from further heat damage. It also has a really good scent that makes my hair smell nice as well. I found that splitting my hair in half and spraying each side with 4 pumps was the best amount for my hair and two pumps was enough for my scalp. I think this is the product that plays the biggest role in my hair turning out to look so shiny and frizz free after my blow outs! If you only had to buy one product from their whole hair care line I would recommend this one for sure! **This review was collected as part of a promotion.