Ingredient

Alpha-GPC: doses on the label

22 published products list Alpha-GPC on a label two independent readers agreed on. 20 state an amount; 7 are at or above the 250 mg reference dose. 2 list it without an amount for it.

Reference dose

250 mg trial dose

Source: Marcus et al., J Int Soc Sports Nutr 2017;14:39 (PMID 29042830) — 250 mg and 500 mg daily for 7 days in 48 healthy college-aged men; the threshold uses the lower dose (peer-reviewed trial)

The dose audit marks a product MET when the amount on its label, as two readers transcribed it, is at or above this figure, and UNDER otherwise. An ingredient inside a proprietary blend has no disclosed dose, so it is counted as undosed, never assumed adequate. A reference dose is the amount a cited study or guideline used; it is not a recommendation for anyone. Every reference dose and its source: how we rate.

Products with 250 mg Alpha-GPC or more

NutraBio Alpha EAA: 600 mg
Jocko Fuel Pro Series Pre Workout: 500 mg
Kaged Pre Workout Elite: 300 mg
NutraBio Pre Workout: 300 mg
NutraBio Pre Workout Stimulant Free: 300 mg
Transparent Labs Bulk Black Pre Workout: 300 mg
Huge Supplements Wrecked Pre Workout: 250 mg

Every verified dose of Alpha-GPC


NutraBio Alpha EAA	BCAA & EAA	600 mg	MET
Jocko Fuel Pro Series Pre Workout	Pre-Workout	500 mg	MET
Kaged Pre Workout Elite	Pre-Workout	300 mg	MET
NutraBio Pre Workout	Pre-Workout	300 mg	MET
NutraBio Pre Workout Stimulant Free	Pre-Workout	300 mg	MET
Transparent Labs Bulk Black Pre Workout	Pre-Workout	300 mg	MET
Huge Supplements Wrecked Pre Workout	Pre-Workout	250 mg	MET
Gorilla Mind Energy Drink	Energy Drink	200 mg	UNDER
Gorilla Mode	Pre-Workout	200 mg	UNDER
Gorilla Mode Lightning	Pre-Workout	200 mg	UNDER
Gorilla Mode Base	Pre-Workout	150 mg	UNDER
Kaged Pre Workout Elite Stimulant Free	Pre-Workout	150 mg	UNDER
Legion Athletics Pulse Pre Workout	Pre-Workout	150 mg	UNDER
Legion Athletics Pulse Stim Free	Pre-Workout	150 mg	UNDER
Transparent Labs Bulk Preworkout	Pre-Workout	150 mg	UNDER
Nutricost Pre Workout Complex with Creatine	Pre-Workout	100 mg	UNDER
Nutricost Pre-Workout Complex	Pre-Workout	100 mg	UNDER
Nutricost Stim Free Pre-Workout	Pre-Workout	100 mg	UNDER
Rule 1 Proteins Prelift	Pre-Workout	100 mg	UNDER
Ghost Energy Case Merica Pop	Energy Drink	75 mg	UNDER
Bucked Up Energy Case Web	Energy Drink	not enough datano amount printed on the label	UNDER
Bucked Up Mini Energy Drink 7oz	Energy Drink	not enough datano amount printed on the label	UNDER

Each dose and status is the one the product’s own dose-audit table prints. Rows naming the same active on one label are added together first, as the audit does. Click a column header to sort.

Pre-Workouts with no Alpha-GPC on the label

37 of the 55 pre-workouts whose labels two readers transcribed list no Alpha-GPC under any name. This goes by the label as transcribed.

1st Phorm Endura Formance, 1st Phorm Megawatt, Alani Nu Pre Workout Juicy Peach, Alani Nu Pre Workout Plus Bue Slush, Animal (Universal Nutrition) Primal Preworkout Powder Supplement, BSN No Xplode Pre Workout, Cellucor C4 Original, Cellucor C4 Sport, Cellucor C4 Ultimate, Dymatize Energyze Pre Workout Strawberry Lemonade, EVL Nutrition Engn, EVL Nutrition Pumpmode Non Stimulant Pump Accelerator, Ghost Pump Peach, Gorilla Mode Nitric, Jacked Factory Nitrosurge, Jacked Factory Pumpsurge, Jocko Fuel Pre Workout, Kaged Pre Kaged, Kaged Pre Kaged Sport, Kaged Pre Kaged Stim Free, Legion Athletics Forge Pre Workout Fat Burner, Legion Athletics Thermogenic Pre Workout, MusclePharm Assault Pre-Workout, Naked Nutrition Pre Workout Powder, NutraBio Base Pre Workout, Optimum Nutrition Amped Pre Workout Berry Fusion, Optimum Nutrition Gold Standard Pre Workout Fruit Punch, PEScience High Volume, PEScience Prolific, Redcon1 Total War 20 Servings, RYSE Godzilla Pre Workout, RYSE Loaded Pre, RYSE Loaded Pump, Transparent Labs Lean Preworkout, Transparent Labs Non Stim Pre Workout, Transparent Labs Pump Preworkout, Xwerks Ignite.