The latest survey was conducted in 2022 by the Industry Transparency Center (ITC) of collagen consumers and supplement users from the US, China, the UK, Germany, and Italy. Those findings imply an association between the user’s knowledge and the sources of the ingredients. Beauty and joint health are the top primary reasons to use collagen supplements. The protein contents matter in the various collagen applications. The collagen sources from the fish scales have maximum protein content than the others.
As per the report, fish scales are the best source of collagen as they may help delay signs of aging, like wrinkles, joint issues, and weakness.