As mentioned above, Cortexi contains more than 20 scientifically selected ingredients that work together to support healthy hearing. The manufacturer claims that all the ingredients in the formula are 100% natural Official Website: https://www.ottawalife.com/article/cortexi-canada-reviews-for-tinnitus-get-to-rid-loss-hearing-2023-reports-is-cortexi-scam-or-legit/