Vetra Dermguard Skin & Coat Health (60ct)Vetra Dermguard Skin & Coat Health (60ct) DermGard with MSM contains all the essential nutrients to promote healthy skin and a shiny coat in dogs and cats. It incorporates Omega 3 from fish. Fish oil Omega 3 fatty acids (EPA and DHA) are capable of modifying inflammatory skin responses in healthy dogs. Typical pet foods lack Omega 3 but are rich in Omega 6. DermGard also includes Omega 6 to balance Omega 3 and 6 contents to the optimal ratio of 1: 7,