How can collagen be used depending on its purity level?

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  1. Collagen with a purity below 90% is used in food products.
  2. Collagen with a purity between 90% and 95% is used as a cosmetic ingredient.
  3. Collagen with a purity above 95% (with the remaining content mostly being moisture and sterile-treated) can be used for medical-grade applications.