Is the water in a cruise cabin shower salty? If so is there a specific shampoo/conditioner that works

Jenni has been working in the travel industry for over 10 years. She fell in love with cruising on her first-ever cruise, a Caribbean cruise on Allure of the Seas, during her honeymoon in 2013. Nowadays, Jenni enjoys cruising with her husband and two young children. Her favourite ships are family-friendly megaships which are packed with exciting facilities. She loves sea days and had been known to skip port visits to spend more time on the ship!