Comparison

Bio Span+ Bio-Enhanced 500 mg and Bio Span

Bio Span+ Bio-Enhanced 500 mg (Biotivia) lists 5 distinct ingredients and Bio Span (Biotivia) 4 (rows of one ingredient counted once); 4 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 0.79.

Amount per serving (and % of the Daily Value)
IngredientBio Span+ Bio-Enhanced 500 mgBio Span
Astragalus300 mg150 mg
Resveratrol122 mg100 mg
Curcumin300 mg150 mg
Silymarin200 mg100 mg
Hu Zhang150 mg

Amounts are per serving as DSLD gives them: Bio Span+ Bio-Enhanced 500 mg, 2 capsules; Bio Span, 1 vegetarian capsule. Current labels entered May 2014 and April 2016. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own