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A 27-year-old female asked:

Is it right that lamp light may decrease the effects of tretinoin ?

1 doctor answer2 doctors weighed in
Dr. Brock Andersen
Dermatology 18 years experience
Light and tretinoin: There was previously a suggestion that uv light (sunlight) inactivated tretinoin, but that has not been substantiated. No suggestion that other light, like lamp light inactivates tretinoin.
Last updated Jan 14, 2014
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