Iron Brothers Joint Support by Iron Brother Supplements, a joint supplement, shares at least 75% of its ingredient profile with Joint Flex by No Turning Back Fitness, a joint supplement. A side-by-side ingredient comparison is provided below.

Complete Product Comparison: Iron Brothers Joint Support vs Joint Flex

Ingredient Iron Brothers Joint Support Joint Flex
Serving Size 3 capsules 3 capsules
glucosamine sulfate 1.5g 1.5g
boswellia serrata extract 210mg 200mg
chondroitin sulfate 150mg 150mg
turmeric 150mg 150mg
quercetin 25mg 25mg
methionine 25mg 25mg
methylsulfonylmethane (msm) 25mg 25mg
bromelain 25mg 25mg
black pepper fruit extract (piperine) 5mg not in product