yes, when used as directed and intended, brushing with all hellofaqs/dental-health-and-effectiveness fluoride toothpastes can help protect enamel from acid wear. hello, in tandem with third party labs, conducts relative dentin abrasivity tests (RDAs) that show hello fluoride toothpastes and hello fluoride free toothpastes gently remove tooth stains without damaging enamel.