Independently Verified - While many shower heads with filters are never tested for quality, Hair Thickness Maximizer’s Shower Secret is independently tested using water samples analyzed by National Testing Laboratories and is shown to reduce chlorine and contaminants for cleaner, healthier water. Don’t be fooled. There’s no such thing as a real “12 layer filter” like some companies claim. Many of those materials offer no practical benefit. Our multi-stage filter uses KDF-type redox media and calcium sulfite granules, which work together to effectively reduce chlorine, heavy metals, and impurities in both hot and cold water. According to the Cleveland Clinic, chlorine in water can dry out skin and weaken hair. Stripping out the natural oils in our hair & skin can leave them damaged, dry, and irritated. A quality water filter shower head helps reduce these harsh elements supporting stronger hair and soothed, nourished skin. 7 Customized Spray Settings: Choose from Deep Soak, Deep Soak + Massage, Massage, Massage + Mist, Misty, Deep Soak + Sweeping Spray, or Sweeping Spray for a spa-like experience - all of this comes in this water filtered shower head high pressure model. Premium Build: Multi-stage filtration, adjustable 7-sprays, and a durable design with a replaceable cartridge included. Filters hot & cold water, installs easily, and maintains strong water pressure. Includes plumber’s tape, wrench & easy install instructions.