March 28, 2013 To whom it may concern: We bought a bottle of Silk Balance and have been using it in our hot tub. I love the way it makes my skin feel. Both my husband and I have noticed that there are no strong odors in the tub. It keeps it fresh and clear, so we can use our tub all of the time. Thank you for making a great product, Kathy Stimpson 25509 NE 42nd Pl Redmond, WA 98053