When will I start to see results? June 17, 2021 12:58 Updated You can expect to see visibly whiter teeth in just one week. Related articles Why should I choose this whitening pen? Can I use this with a mouth guard or Invisalign type of braces? What age range is hum kids by Colgate smart manual toothbrush suitable for? Is there an interval in between treatment cycles? How much time should I wait to go through the whitening cycle again? How long does the Colgate Optic White Overnight Teeth Whitening Pen last? Comments 0 comments Article is closed for comments.
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