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The primary purpose of Lip Balm is to provide an
occlusive layer on the lip surface to seal moisture in lips and
protect them from external exposure. Dry air, cold temperatures and
wind all have a drying effect on skin by drawing moisture away from
the body. Lips are particularly vulnerable because the skin is so
thin, and thus they are often the first to present signs of dryness.
The occlusive materials like waxes and petroleum jelly prevent
moisture loss and maintain lip comfort while flavorants, colorants,
sunscreens and various medicaments can provide additional, specific
benefit. |
