Comparison
Joint Maxx and Back-Flex
Joint Maxx (NRG-X Labs) lists 7 distinct ingredients and Back-Flex (Foster Regal) 10 (rows of one ingredient counted once); 6 are on both labels. On the site's similarity measure, which compares ingredient lists (1 for the same list, rarer ingredients counting for more; amounts are not part of it), the two formulas score 0.51.
| Ingredient | Joint Maxx | Back-Flex |
|---|---|---|
| Vitamin C | 150 mg (167%) | 26 mg (29%) |
| Calcium | 100 mg (8%) | 75 mg (6%) |
| Vitamin B6 | 5 mg (294%) | 3 mg (176%) |
| Zinc | 10 mg (91%) | 5 mg (45%) |
| Manganese | 2 mg (87%) | 75 mg (3261%) |
| Methylsulfonylmethane | 1,000 mg | 250 mg |
| Vitamin D | 2.5 mcg (13%) | |
| Magnesium | 40 mg (10%) | |
| Potassium | 17 mg (under 1%) | |
| Copper | 0.2 mg (22%) | |
| Glucosamine Hydrochloride | 0.25 g |
Amounts are per serving as DSLD gives them: Joint Maxx, 4 capsules; Back-Flex, 1 tablet. Current labels entered March 2013 and April 2022. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.
Each product on its own
- Joint MaxxNRG-X Labs: every row against all products listing it
- Back-FlexFoster Regal: every row against all products listing it