It's a 10 Miracle Leave in Spray". Why is it called It's a 10? It is a repairative leave in hair conditioner that delivers the following ten benefits: Repairs, Adds Shine, Tames Frizz, Protects Color, Detangles, Prevents Split Ends, Curbs Breakage, Softens, Boosts Body and Protects Hair From Heat. To use, just spray it into damp hair after shampoo and conditioner, comb through and style. After the first use, my hair went from straw to silk. I was amazed. The frizz was tamed and I had a nice volume and shine to my hair. It is a bit pricey but it does last a long time and I even use it on my 4 year old's very curly hair and it works wonders for her tangles. This product also claims to promote hair growth (but I haven't used it long enough to review see any hair growth). I think this product is a must have if you have color-treated hair or struggle with dryness and frizz. It has made me believe in miracles again.