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Lips are a visible body part at the mouth of many animals, including humans.

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Carmex is a brand of lip balm produced by Carma Laboratories, Inc. It is sold in jars, sticks, and squeezable containers.

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The Cupid's bow is a facial feature where the double curve of a human upper lip is said to resemble the bow of Cupid, the Roman god of erotic love. The peaks of the bow coincide with the philtral columns giving a prominent bow appearance to the lip.

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Embouchure or lipping is the use of the lips, facial muscles, tongue, and teeth in playing a wind instrument. This includes shaping the lips to the mouthpiece of a woodwind instrument or the mouthpiece of a brass instrument. The word is of French origin and is related to the root bouche, 'mouth'. Proper embouchure allows instrumentalists to play their instrument at its full range with a full, clear tone and without strain or damage to their muscles.

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The frenulum labii inferioris is the frenulum of the lower lip.

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Lip balm or lip salve is a wax-like substance applied topically to the lips to moisturize and relieve chapped or dry lips, angular cheilitis, stomatitis, or cold sores. Lip balm often contains beeswax or carnauba wax, camphor, cetyl alcohol, lanolin, paraffin, and petrolatum, among other ingredients. Some varieties contain dyes, flavor, fragrance, phenol, salicylic acid, and sunscreen.

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Lip gloss is a cosmetic used primarily to give lips a glossy lustre, and sometimes to add a subtle color. It is distributed as a liquid or a soft solid The product is available in ranges of opacity from translucent to solid, and can have various frosted, glittery, glossy, and metallic finishes.

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Lip liner, also known as a lip pencil, is a cosmetic product. It is intended to fill in uneven areas on the outer edges of the lips before applying lipstick to give a smoother shape. It is also used to outline the lips, keeping lipstick inside the lip area and preventing it from "bleeding", creating a bigger contrast and making the lips stand out more. Alternatively, lip liner can be used to fill in the entire lip before the application of lipstick, and in some cases is worn as a lipstick on its own. The product is usually sold in a retractable tube or pencil form which can be sharpened. Lip liner is usually available in the same range of colors as lipsticks: e.g., reds, pinks, browns, plums, etc. Lip liner also comes in invisible, for giving the illusion of smooth lips without adding or affecting color.

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A lip piercing is a type of body piercing that penetrates the lips or the area surrounding the lips, which can be pierced in a variety of ways.

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Lipstick is a cosmetic that applies color, texture, and protection to the lips.

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The philtrum, or medial cleft, is a vertical indentation in the middle area of the upper lip, common to many mammals, extending in humans from the nasal septum to the tubercle of the upper lip. Together with a glandular rhinarium and slit-like nostrils, it is believed to constitute the primitive condition for at least therian mammals. Monotremes lack a philtrum, though this could be due to the specialised, beak-like jaws in living species.

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The vermilion border, also called margin or zone, is the normally sharp demarcation between the lip and the adjacent normal skin. It is where lipstick is sometimes applied. It represents the change in the epidermis from highly keratinized external skin to less keratinized internal skin. It has no sebaceous glands, sweat glands, or facial hair.

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Violent Lips is a cosmetics company founded by Jeff Haddad. The product line consists of temporary tattoo decals for the lips, which create designs not possible with traditional lipstick - such as rainbows, animal prints, and polka dots. At just 13 and 9 years old, Haddad's daughters, Sophia and Isabella, were playing around with temporary tattoos. As a joke, they affixed them onto their lips and just like that the idea for temporary lip art was born.

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White roll is the white line that borders the top of the upper lip. It's an adnexal mass of specialized glands and fat. White roll occurs naturally for nearly everyone, although it can be not white and less visible for dark skinned individuals. Well defined white roll indicates youthfulness and is considered aesthetically pleasing.