Review on 🚿 Aquasana AQ-4125 Shower Filter Replacement Cartridge, White, 1-Pack by Allan Ryser

I have been using these filters for many years. I couldn't figure out why my blonde hair kept turning messy brown. I bleached my hair and after a few weeks it was brown. I ended up going to a specialist dye salon and was told it was most likely my water. I told them I bought an expensive shower water filter. That's when I realized that these filters contain copper. If you google copper and hair color you will see that it ruins the hair color; mostly light highlights. These Aquasana filters are now made of copper. If you color your hair, this is not the best filter for your hair. I have since purchased a product to remove copper and other minerals from my hair and have switched to a copper-free shower filter. My blonde is still blonde.