The use of vitamin C in the treatment of hair and skin is well established and now this easy to fit shower filter can completely neutralise chlorine in your shower water by releasing vitamin C. This helps to improve the condition of skin and texture of hair. The shower filter uses a pharmaceutical food grade of Vitamin C which is fully tested and compliant with UK and European Standards. The pack contains 3 replacement filters. The cartridges will last an average of 2 months with typical usage and water quality. You can see exactly when the Vitamin C level has finished as the filter container is see-through. The Replacements are suitable for both, Osmio Vitafresh Inline Vitamin C Shower Filter and Osmio Vitafresh Handheld Vitamin C Shower Filter models.