I am a teenager with very thin and frizzy hair. I have always been jealous of friends who had effortlessly perfect hair so I began asking around. I had a friend who recommended this product and I thought "well I have nothing to lose" so I went to the store and tried this along with the shampoo. I did not expect much because my hair is never smooth unless I go to the hair salon but once I got out of the shower and blow dried my hair (using TRESemmé heat protector of course.) I was pleasantly surprised. I continued to use the product over time and noticed that my hair started to look shinier and healthier with every day that passes without leaving a greasy residue or product build up in my hair. I could not be happier. TRESemmé really does give you the salon quality without the salon price. Did I mention your hair is left smelling amazing?