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 Do you test on animals? Does the Colgate Optic White Overnight Teeth Whitening Pen contain any animal-by-products? Comments 0 comments Article is closed for comments.
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