Comparison

Vitamin C Pure Powder and Ascorbic Acid 100% Pure Powder

Vitamin C Pure Powder (Best Naturals) lists 1 distinct ingredients and Ascorbic Acid 100% Pure Powder (NOW) 1 (rows of one ingredient counted once); 1 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 1.00: the same ingredients, at the amounts in the table below.

Amount per serving (and % of the Daily Value)
Ingredient	Vitamin C Pure Powder	Ascorbic Acid 100% Pure Powder
Vitamin C	2,250 mg (2500%)	2,250 mg (2500%)

Amounts are per serving as DSLD gives them: Vitamin C Pure Powder, 2.25 g; Ascorbic Acid 100% Pure Powder, 0.5 tsp. Current labels entered June 2022 and August 2012. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own

Vitamin C Pure PowderBest Naturals: every row against all products listing it
Ascorbic Acid 100% Pure PowderNOW: every row against all products listing it