2. Sting with Cinnamon

Sting with Cinnamon Plump ‘Em Up: 5 Ways to Naturally Enhance Lips

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Many women use a tiny amount of cinnamon or cinnamon oil their lips because it irritates the skin and can cause the lips to puff up (as if they had been mildly stung). Use caution with this one and consult a doctor before you try it.