I've used Kerasilk for many years (and, yes, it's totally worth the money), but this is the first time I've tried the volumising shampoo. I couldn't be happier! I have waist-length hair, and although there's plenty of it. It's very fine and simply due to the lenth/weight of it, it can easily look flat. This little gem solved that problem. My hair looks much fuller without any sticky or greasy residue! Just one more fabulous product by Kerasilk : )