We recently purchased a new hot tub and received a complimentary bottle of SilkBalance upon delivery of the tub to our home. Our local spa experts told us it would replace all of the chemicals previously used to keep our hot tub water balanced as well as eliminate the smell and leave our skin soft and silky. After using the product we can say it absolutely does all of these things very well. With this and our choice of bromine we are keeping our hot tub clean, clear and odor free. No more fuss and no more itchy dry skin. Thank you very much for the great product. Allen and Kathy Bell Please excuse this if it is the second one you receive from us. We tried earlier but the submission took a very long time and the page appeared to have timed out. KB