Native Pet Skin & Coat Chews - Omega 3 Fish Oil for Dogs Skin & Coat Supplement - Itch Relief, Shiny Fur & Shedding Support - Collagen, Hyaluronic Acid, Biotin, Probiotics & Salmon Oil - 30 Chews

Depends on your budget. Try this supplement: https://www.amazon.com/dp/B0D484B23G/?coliid=I2WLSKCU3IKLZP&colid=33VW4HI4GTWT9&psc=0&ref_=list_c_wl_lv_vv_lig_dp_it Nulo is good. canidae is good. Try something with no rice or chicken. Some dogs don’t tolerate either.