QUESTION: Dear Mark, please can you tell me how many hours I can use a carpule for? Can I take it out before bed and use it again in the morning? Can I still use it after two or three days if there is still blue color, or will it go bad or get mold? Thank you so much again for this life changing invention! ~ KG in New York
ANSWER: Use a carpule for about an hour at a time, if you like before bed and again in the morning. The color fades, but as long as there are granules in the bottle the potency is fine. They may look grey but the solution is antimicrobial as all the calcium materials and have years of shelf life.
Regards, Mark DDS