Nowadays, it becomes a very popular fashion for women to use over-the-counter plumper to give their lips beautiful and sexy look. Unfortunately, the majority of females are unaware to the side effects of commercial lip plumper products. In fact, the commercial lip plumper contains any irritant ingredient (such as chili pepper, ginger, mint, menthol or cinnamon) due to which, the lips swell temporarily and look fuller and pouty. In the reaction of irritant constituents, the blood vessels become dilate, so the blood flow to the lips increases. Sometimes, the use of irritant ingredient may cause more intense reactions like redness, swelling or rashy appearance etc.