Although it is a mild acidic shampoo, it lathers well. My hair definitely feels softer. After I got my hair done at the hairdresser, my hair feels heavy and soft for a few days. When I asked what they used, they said it was keratin shampoo. This is not as great that one, but for the price, I'm very satisfied! On the contrary, it is nice that the hair does not weigh down and make it look greasy. If you use regular shampoo and use this shampoo alternately, you will see the real difference!! It smells a little musky? Although it's not my preference of scent, after I dry my hair, it seems almost unscented, so I use this shampoo on my scalp, and use other scented shampoo on my hair or I dry my hair and spray perfume on it.