Comparison

Easy-C 500 mg Regenerating Complex and Quercetin 500 mg

Easy-C 500 mg Regenerating Complex (Natrol) lists 11 distinct ingredients and Quercetin 500 mg (Natrol) 7 (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 0.65.

Amount per serving (and % of the Daily Value)
IngredientEasy-C 500 mg Regenerating ComplexQuercetin 500 mg
Flavonoid190 mg100 mg
Quercetin10 mg500 mg
Orange (unspecified)not disclosednot disclosed
Lemonnot disclosednot disclosed
Tangerinenot disclosednot disclosed
Limenot disclosednot disclosed
Vitamin C1,000 mg (1111%)
Calcium525 mg (40%)
Magnesium18 mg (4%)
Zinc19 mg (173%)
Alpha Lipoic Acid50 mg
Indian Gooseberry10 mg

Amounts are per serving as DSLD gives them: Easy-C 500 mg Regenerating Complex, 1 capsule; Quercetin 500 mg, 2 capsules. Current labels entered January 2018 and December 2017. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own