Updated On: 13 November, 2017 12:24 PM IST | | IANS
<p>The skin has defensive mechanisms that help fight free radicals that exist in the polluted air by secreting fats and oils called lipids that act as a barrier against these pollutants</p>

New Delhi: The skin has defensive mechanisms that help fight free radicals that exist in polluted air by secreting fats and oils called lipids that act as a barrier against these pollutants. To strengthen this mechanism there are certain tips that one should follow to ward off skin diseases, say experts.
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