Is the Colgate Optic White Overnight Teeth Whitening Pen gluten free? June 17, 2021 13:34 Updated Yes, we certify that the Colgate Optic White Overnight Teeth Whitening Pen is gluten free. Related articles What if I am unhappy with the results? Can I swallow my saliva while undergoing treatment? Can I use this with a mouth guard or Invisalign type of braces? Comments 0 comments Article is closed for comments.
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