Comparison

Proto-Sitosterol Plant Sterol Esters and Beta-Sitosterol Plant Sterols

Proto-Sitosterol Plant Sterol Esters (Protocol For Life Balance) lists 3 distinct ingredients and Beta-Sitosterol Plant Sterols (NOW) 4 (rows of one ingredient counted once); 3 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 0.85.

Amount per serving (and % of the Daily Value)
IngredientProto-Sitosterol Plant Sterol EstersBeta-Sitosterol Plant Sterols
Beta Sitosterol400 mg400 mg
Stigmasterolnot disclosednot disclosed
Plant Sterols1,000 mg1,000 mg
Fish Oil0.12 g

Amounts are per serving as DSLD gives them: Proto-Sitosterol Plant Sterol Esters, 2 softgels; Beta-Sitosterol Plant Sterols, 2 softgels. Current labels entered November 2012 and May 2016. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own