It is incredible just how good this shampoo is. I had used it after an unfortunate incident with hair coloring that damaged and altered my hair leading to a significant hair loss. It worked wonders. I used it faithfully and experienced rapid hair growth and my thickness came back. And now...I am in perimenopause and my hair is just not the same. Started using Dural Repair again...the results are so amazing I just ordered another bottle and I am never going back to drug store shampoos! Love, love, LOVE this product! Thank you for helping me to feel like a young woman again!