Arctic Pure Ultra Spa is the easy & effective way to condition hot water AND soften skin in your hot tub or spa. Arctic Pure Ultra Spa Water Conditioner contains a blend of borates & water conditioners plus a mild, fresh smelling fragrance giving your hot tub water a fresh scent and a softer feel. Ultra Spa Water Conditioner may help skin rashes that are due to drying skin caused by hot water & chemicals such as chlorine & bromine. On top of all of that, you'll most likely find that with continued use, your hot tub's water balance (pH & total alkalinity) will be easier to maintain.