Comparison

C4 Extreme Sour Batch Bros and C4 Extreme Ultra Frost

C4 Extreme Sour Batch Bros (Nutrabolt) lists 7 distinct ingredients and C4 Extreme Ultra Frost (Nutrabolt) 6 (rows of one ingredient counted once); 6 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 0.93.

Amount per serving (and % of the Daily Value)
IngredientC4 Extreme Sour Batch BrosC4 Extreme Ultra Frost
Caffeine200 mg200 mg
Beta-Alanine2 g2 g
Creatine1 g1 g
Citrulline1 g1 g
Huperzine50 mcg50 mcg
N-Acetyl Tyrosine200 mg200 mg
Sodium55 mg

Amounts are per serving as DSLD gives them: C4 Extreme Sour Batch Bros, 7 g; C4 Extreme Ultra Frost, 6.5 g. Current labels entered July 2021 and June 2020. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own