One of the active ingredients in some mouthwashes is known to cause taste loss: https://www.reddit.com/r/Dentistry/comments/21vddm/i_lost_my_sense_of_taste_afte

One of the active ingredients in some mouthwashes is known to cause taste loss: https://www.reddit.com/r/Dentistry/comments/21vddm/i_lost_my_sense_of_taste_after_starting_with/ https://www.reddit.com/r/Dentistry/comments/21vddm/i_lost_my... I discovered this after starting to use Crest Gum Care mouthwash and it was pretty annoying. Luckily the loss of taste was not permanent and returned a few days after stopping use.