Healthy Hot Tub / Spa Water Treatment & Conditioner - no more itching, rashes, odors, or coughing. Skin & Hair - The Spa Water treatment & Conditioner is gentle to the skin and hair. Sensitive Skin - Conditions water for sensitive skin. People with eczema and psoriasis love using Spa Marvel as this hot tub water treatment actually improves their condition rather than irritate and dry their skin the way chemicals can. pH & Alkalinity - Helps to maintain pH and alkalinity. Prevents scale buildup from occurring and descales deep-seated buildup that can accumulate over time. Soft & Odorless - Water so soft & odourless you won´t feel the need to shower after using your spa & hot tub. Bundle with a Lumintrail Scrub