Pros

  • โ€ขEaso-use with clear instructions and a convenient pen format.
  • โ€ขComes with a stand for convenient storage.
  • โ€ขEffective whitening noted, with improvements seen after just 7 days and significant results after 2 weeks.
  • โ€ขNo sensitivity or pain reported during use.
  • โ€ขFeatures a protective overnight shield for teeth.
  • โ€ขBoosts confidence and increases smiling.
  • โ€ขCompatible app provides usage guidance and session logging.
  • โ€ขEasy application without sensitivity, appealing for those with Invisalign retainers.
  • โ€ขSuperior to whitening strips for even application across teeth.

Cons

  • โ€ขInitial activation requires numerous clicks to dispense the product.
  • โ€ขApplication can be challenging as teeth need to be completely dry, complicated by saliva.
  • โ€ขGel texture can be gritty, leaving residue that requires thorough brushing in the morning.
  • โ€ขThe clear product makes it difficult to see during application.
  • โ€ขSerum can harden on the brush, complicating future applications.
  • โ€ขMinimal whitening effect for some users, especially near gum areas.
  • โ€ขUneven results reported, with some areas not showing expected improvement.
  • โ€ขDifficult to capture results effectively in photos due to lighting variations.
  • โ€ขSome users found the serum difficult to remove in the morning.

Bottom Line

The Colgate Optic White Overnight Teeth Whitening Pen is a convenient and user-friendly solution for those looking to whiten teeth with minimal sensitivity. Its ease of use, along with the accompanying app, provides excellent support for maintaining a whitening routine. However, the product may require a bit of effort to ensure even application, especially due to initial dispensing challenges and the necessity of dry teeth. For those seeking quick and noticeable results, this product offers potential, but the outcomes may vary with darker stains and pre-existing conditions.

Lowest at Amazon
$18.30 at Amazon
Lowest at any Popular Retailer
$15.35 at Bonanza

Where to Buy

Prices last updated: August 1st 2025 9:00 pm
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