This pain relief support is free from many common allergens like gluten, dairy, nuts, soy, eggs, crustaceans, and dairy as well. They are also free from harmful chemicals, BPAs, and GMOs. So the chances of this supplement causing any side effects are extremely rare.However, individuals with any underlying medical conditions or who are using any prescription medications must visit their doctor before using Flexotone joint health support. Experts suggest the same for expecting and nursing mothers.