CC STUDIO / SCIENCE PHOTO LIBRARY CC STUDIO / SCIENCE PHOTO LIBRARY
Collagen injection. Surgeon injecting collagen into a woman's upper lip. Collagen is the body's major structural protein and can be injected in and around the lips to produce a more permanent pout referred to as 'lip augmentation'. The collagen fills out the spaces beneath the skin, giving the lips a fuller appearance. The effects of the collagen are only temporary.
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