"As dermatologists, we frequently see the physical consequences, including damaged nail plates, chronic inflammation around the nails, infections, and permanent nail changes." Now, there's still a lot we don't know about how and why GLP-1 medications work and why people experience such diverse side effects, but physicians have some theories as to why injecting yourself with semaglutide or tirzepatide might make you less likely to chomp on your fingernails
Frau, M
Mutha RE, Tatiya AU, Surana SJ
Ikarashi N, Kon R, Nagoya C, Ishikura A, Sugiyama Y, Takahashi J, Sugiyama K (2020) Effect of astaxanthin on the expression and activity of aquaporin-3 in skin in an in-vitro study
What reconstitution and storage steps preserve peptide integrity in the lab