I am a lifetime customer! The liquid cleaning crystals ensure that my denture is safe and free from candida, staphylococcus and streptococcus and other dangerous pathogens. Thank you for creating a product that is both safe for myself and my denture! My biggest fear was that I wouldn’t be able to keep my denture free from dangerous pathogens! These products are fantastic for those that have autoimmune disorders! I finally found a safe, healthy, clean and stain product that allows me brush my teeth in public like anyone else! And I no longer have dry mouth! Thank you!