@better.biom: Replying to @charnich74 NOBS toothpaste tablets do not contain SLS. We chose to leave it out because SLS (sodium lauryl sulfate) is known to cause canker sores, oral irritation, and dry mouth for many people. It’s a harsh detergent that’s mostly used to make toothpaste foam up. Our formula leaves it out entirely, using gentler ingredients that still clean effectively and support oral health. My co-founder @thenobsdentist has geographic tongue and couldn’t use SLS even if he wanted to, so it was a no from day one. #slsfree