Comparison

Super C Buffered Vitamin C Powder and Optimum-C Formula

Super C Buffered Vitamin C Powder (Rainbow Light) lists 16 distinct ingredients and Optimum-C Formula (Bluebonnet) 8 (rows of one ingredient counted once); 8 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 0.45.

Amount per serving (and % of the Daily Value)
IngredientSuper C Buffered Vitamin C PowderOptimum-C Formula
Vitamin C1,000 mg (1111%)1,000 mg (1111%)
Calcium100 mg (8%)94 mg (7%)
Grape25 mg100 mg
Flavonoid50 mg500 mg
Rutin12.5 mg50 mg
Acerolanot disclosed10 mg
Hesperidin12.5 mg200 mg
Rose (unspecified)not disclosed10 mg
Cranberry25 mg
Blueberrynot disclosed
Bilberrynot disclosed
European Eldernot disclosed
Cabbage10 mg
Orange (unspecified)25 mg
Lemon25 mg
Polyphenols6 mg

Amounts are per serving as DSLD gives them: Super C Buffered Vitamin C Powder, 0.5 tsp; Optimum-C Formula, 2 capsules. Current labels entered February 2015 and January 2023. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own