Any triglyceride fish oil is protected from oxidation.
Cissus does not have a single study showing it reduces cortisol. It is a glucocorticoid antagonist in bone tissue, which means that it reduces resorption and helps bones heal.
Conversely, glucosamine and chondroitin have no good data demonstrating efficacy. This is the science section, meaning we are seeking to provide evidence-based suggestions, not the exact opposite.