I've used and I still use different products of the Matrix Biolage series, depending on what my hair needs. Last year, after my hair got weak due to a persistent use of antibiotics, I used this conditioner hoping it would help my hair gain some strength and shine. I combined it with Matrix fortifying shampoo. Used them for about three months. Loved the results. Matrix is more expensive than regular commercial brands and compares to a salon brand: I strongly recommend it for its value anc quality.