Ive used it for many years and never a problem. Its really helped with the plaque and gums. My hygienist looked it up and told me to keep using it. I also rinse with 1 teaspoon bleach in a cup of water every 2-3 days on the advice of my hygienist. My dental health has improved a lot.
Its far cheaper than what weve been using. I may have to try it.
Bleach is incredible. My son has severe eczema and his dermatologist prescribed bleach baths. I was surprised, but am now a believer. It really helps heal his skin.