Lip Plumpers can range in strength from a peppermint extract in a lip balm to more aggressive lip treatments that contain Niacin that causes the blood to circulate to the lips and cause swelling giving a plump younger look. The benefits of most plumpers: Plumps, glosses, and moisturizes lips. Amplifies and enhances natural lip color. Mature lips appear more youthful and flirty. Thin lips, fuller and more sensual. Simple to use with results in seconds. Use them alone as a gloss or under a gloss or lipstick after they have been absorbed.