Comparison

NIOX Ultra and Beta Alkaline Tropical Ice

NIOX Ultra (Nutrex Research) lists 4 distinct ingredients and Beta Alkaline Tropical Ice (BPI Sports) 2 (rows of one ingredient counted once); 2 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 0.51.

Amount per serving (and % of the Daily Value)
IngredientNIOX UltraBeta Alkaline Tropical Ice
Beta-Alaninenot disclosed1 g
Glycerolnot disclosed2 g
Argininenot disclosed
Agmatinenot disclosed

Amounts are per serving as DSLD gives them: NIOX Ultra, 3 liquid capsules; Beta Alkaline Tropical Ice, 4 g. Current labels entered August 2014 and March 2015. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own