Comparison

C4 Ultimate On The Go Sparkling Tropical Blast and C4 Ultimate On The Go Watermelon

C4 Ultimate On The Go Sparkling Tropical Blast (Nutrabolt) lists 18 distinct ingredients and C4 Ultimate On The Go Watermelon (Cellucor) 17 (rows of one ingredient counted once); 17 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 0.97.

Amount per serving (and % of the Daily Value)
IngredientC4 Ultimate On The Go Sparkling Tropical BlastC4 Ultimate On The Go Watermelon
Carbohydrate0 g1 g
Vitamin B61 mg (59%)1 mg (59%)
Sugar0 g0 g
Vitamin B1270 mcg (2917%)70 mcg (2917%)
Niacin60 mg (375%)60 mg (375%)
Folate500 mcg500 mcg
Caffeine300 mg300 mg
Taurine1,000 mg1,000 mg
Beta-Alanine3.2 g3.2 g
Betaine Anhydrous1.5 g1.5 g
Citrulline malate6 g6 g
Alpha-GPCnot disclosednot disclosed
Huperzinenot disclosednot disclosed
Arginine Alpha Ketoglutarate1 g1 g
N-Acetyl Tyrosinenot disclosednot disclosed
African Snakerootnot disclosednot disclosed
Sceletiumnot disclosednot disclosed
Potassium110 mg (2%)

Amounts are per serving as DSLD gives them: C4 Ultimate On The Go Sparkling Tropical Blast, 16 fl. oz.; C4 Ultimate On The Go Watermelon, 11.66 fluid ounces. Current labels entered August 2019 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