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並前往https://www.webmd.com/skin-problems-and-treatments/news/20191212/collagen-supplements-what-the-research-shows

Collagen: 'Fountain of Youth' or Edible Hoax? - WebMD

One study of 89 long-term care residents with pressure ulcers found that those who took collagen supplements three times daily for 8 weeks saw ...

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