What do collagen injections do?

Stuart A. Linder, MD
Plastic Surgery
Collagen injections of the past included Zyderm and Zyplast. They were useful to reduce fine lines and wrinkles along the perioral, nasolabial folds, and other facial areas. Collagen was porcine or pig collagen and has now been replaced with Hyaluronic acids including Juvaderm and Radiessce. These are longer acting and have more promising results. 
Daniel Kapp
Daniel Kapp on behalf of MDLIVE
Plastic & Reconstructive Surgery
Collagen injections are typically used to fill small fine lines and wrinkles typically in the perioral area. Collagen was the first generation of injectable fillers. For the most part, collagen is no longer used today as most plastic surgeons and dermatologists choose to use hyaluronic acid fillers which have taken the place of the collagen fillers.
Dr. Mehmet Oz, MD
Cardiology (Cardiovascular Disease)

Collagen injections fill lines and wrinkles in the skin to leave it looking plump and smooth. The protein also plumps cheeks and lips, fixes facial imperfections, lessens the appearance of scars and minimizes skin folds.

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Skin Care

Blueberries, dark chocolate and sunscreen are three things you need to keep skin beautiful, supple and smooth. Antioxidant-rich foods such as berries, dark chocolate, cantaloupe, citrus fruits and leafy greens provide the vitamins ...

you need for skins elasticity. Avoiding smoking prevents premature aging. But the number-one way to keep skin gorgeous is to stay out of the sun and away from tanning beds. The suns radiation causes skin damage, including wrinkles, age spots and skin cancer. Use a sunscreen that protects against UVA and UVB rays in an SPF of 15 or higher, and reapply often.
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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.