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A member asked:
Is it possible to overuse retinol?
A doctor has provided 1 answer
Refractive index: The easiest explanation is that human eyes are "built" to work in air. Water bends light waves more than air does, and our eyes need a layer of air in front of them in order to focus. That its why a pair of goggles helps you see under water.
Answered 11/30/2012
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Related Questions
A member asked:
0.2% retinol is drying out my skin. Would like to keep using as the benefits are great. Will this subside with continued use ?
A doctor has provided 1 answer
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