Comparison

Stimerex-ES w/ 25 mg Ephedra Extract and Black Widow

Stimerex-ES w/ 25 mg Ephedra Extract (Hi-Tech Pharmaceuticals) lists 13 distinct ingredients and Black Widow (Hi-Tech Pharmaceuticals) 11 (rows of one ingredient counted once); 10 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 0.66.

Amount per serving (and % of the Daily Value)
IngredientStimerex-ES w/ 25 mg Ephedra ExtractBlack Widow
Green Teanot disclosednot disclosed
Caffeine150 mg150 mg
Yohimbenot disclosednot disclosed
Bitter orangenot disclosednot disclosed
Cocoanot disclosednot disclosed
Synephrine25 mg20 mg
Naringeninnot disclosednot disclosed
Phenylethylaminenot disclosednot disclosed
Blackbrushnot disclosednot disclosed
Ephedra25 mg25 mg
Phenethylamine125 mg
1,3-DMAAnot disclosed
Methylsynephrinenot disclosed
Beta-Methylphenylethylaminenot disclosed

Amounts are per serving as DSLD gives them: Stimerex-ES w/ 25 mg Ephedra Extract, 1 tablet; Black Widow, 1 capsule. Current labels entered August 2015 and August 2015. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own