Comparison

Thermo Burst Hardcore and Amplified Muscle Igniter 4X Tropical Punch

Thermo Burst Hardcore (GNC Pro Performance) lists 18 distinct ingredients and Amplified Muscle Igniter 4X Tropical Punch (GNC Pro Performance AMP Advanced Muscle Performance) 20 (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 0.84.

Amount per serving (and % of the Daily Value)
IngredientThermo Burst HardcoreAmplified Muscle Igniter 4X Tropical Punch
Vitamin C120 mg (133%)120 mg (133%)
Vitamin B62 mg (118%)2 mg (118%)
Niacin20 mg (125%)40 mg (250%)
Pantothenic Acid (Vitamin B5)10 mg (200%)10 mg (200%)
Green Teanot disclosednot disclosed
Ginger500 mgnot disclosed
Caffeinenot disclosed200 mg
Grape1 mgnot disclosed
Black Peppernot disclosednot disclosed
Capsicumnot disclosednot disclosed
L-Carnitine25 mgnot disclosed
Schisandra100 mgnot disclosed
Guarana422 mgnot disclosed
Yohimbenot disclosednot disclosed
Mate500 mgnot disclosed
Black Tea100 mgnot disclosed
Dill5 mgnot disclosed
Carbohydrate5 g
Sugar0 g
Fenugreeknot disclosed
GABAnot disclosed

Amounts are per serving as DSLD gives them: Thermo Burst Hardcore, 3 tablets; Amplified Muscle Igniter 4X Tropical Punch, 5.97 g. Current labels entered January 2012 and February 2012. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own