My mom said she found something online about not exfoliating your lips because the lips are a mucus membrane, only protected by a thin layer of skin. http://www.dailymakeover.com/trends/the-dos-and-donts-of-exfoliating-your-body/ Read this and come to your own conclusion about this debate and comment down below what you think. I think using an SPF lip balm every morning can soften the lips throughout the day and using a non-SPF lip balm at night can soften them during sleep. I do this and I see a difference. You have to protect your lips from the harshness of the weather.
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