For a daily dose of Vitamin C, just jump in the shower! The anti-oxidant rich vitamin is showing up in all kinds of skincare products and now you can have it in your shower. Sonaki's showerhead contains pharmaceutical-grade Vitamin C in the shower filter, making it a natural and environmentally safe way to remove chlorine from tap water. Each cartridge will process more than 2,600 gallons of water. Sonaki claims the topical use of vitamin C works as an anti-oxidant for the skin and makes hair, shinier and softer.