TEETH-WHITENING
What Happens if I Swallow Some of the Gel from the Strip?
What happens if I swallow the strip or some of the gel from the strip?
No adverse effects will result from ingesting the peroxide gel. It will simply pass through your system without causing any damage. However, swallowing large amounts of peroxide can cause nausea and stomach irritation.
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Crest Whitestrips Instructions: Safe & Easy Teeth Whitening