Dear Silk Balance: We have had our hot tub set up for one week. I have to say I was very skeptical about your product that it would really make any difference in my skin considering my hot tub sits outside, but WOW! I Love this product. I could not believe how nice my skin and hair felt and smelled. I have already recommended the product to others that have hot tubs, and I will continue to do so. I thought enjoying my hot tub would be great. Using Silk Balance has my hot tub Fantastic. Thank you Lori Selvidge Davison MI