Ingredient
Alpha-GPC
Research dose
250–600 mg/day
Evidence: Weak Trials gave alpha-gpc daily, for weeks: what counts is the amount you take in a day.
The positive studies gave it daily for 6–7 days (600 mg, or 250 mg for jump power). A single dose before training did not change performance in a 2024 trial.
Sources
Bellar D, LeBlanc NR, Campbell B. The effect of 6 days of alpha glycerylphosphorylcholine on isometric strength. J Int Soc Sports Nutr. 2015;12:42.
Supports the research dose. Where: Abstract: "600 mg per day of A-GPC or placebo and at the end of 6 days". Read the source, checked 7 Oct 2026.
Marcus L, Soileau J, Judge LW, Bellar D. Evaluation of the effects of two doses of alpha glycerylphosphorylcholine on physical and psychomotor performance. J Int Soc Sports Nutr. 2017;14:39.
Supports the research dose. Where: Abstract: "500 mg A-GPC, 250 mg A-GPC, 200 mg Caffeine or Placebo taken daily" for 7 days. Read the source, checked 7 Oct 2026.
Alpha-GPC supplements we've checked
9 alpha-GPC supplements, each judged on how much a day its label's own directions give. See them all, ranked.
In the pre-workouts we've checked
| Product | Per scoop | Verdict |
|---|---|---|
| 1st Phorm Project-1 | 150 mg | Below research dose |
| Kaged Pre-Kaged Elite | 150 mg | Below research dose |
| Legion Pulse | 75 mg | Below research dose |
| Bucked Up Woke | 200 mg | Below research dose |
| MuscleTech EuphoriQ | 360 mg | Effective dose |
| RAW Nutrition CBUM Essential Charged | 200 mg | Below research dose |
| Ghost Legend All Out | 300 mg | Effective dose |
| Huge Supplements Wrecked | 250 mg | Effective dose |
| Transparent Labs BULK | 150 mg | Below research dose |
| Thorne Advanced Pre-Workout | 300 mg | Effective dose |
| Bucked Up Non-Stim Pre-Workout | 200 mg | Below research dose |
| Nutricost Stim-Free Pre-Workout | 100 mg | Below research dose |
| Apollon Nutrition Bare Knuckle | 75 mg | Below research dose |
| Bucked Up Pre-Workout | 200 mg | Below research dose |
| Gorilla Mind Gorilla Mode Base | 150 mg | Below research dose |
| Nutricost Pre-Workout Complex | 100 mg | Below research dose |
| Gorilla Mind Gorilla Mode | 200 mg | Below research dose |
| JYM Pre JYM | 150 mg | Below research dose |
| Alpha Lion SuperHuman Pump | 75 mg | Below research dose |
| Apollon Nutrition Assassin | 150 mg | Effective dose |
| Axe & Sledge Seventh Gear | 100 mg | Below research dose |
| Huge Supplements Wrecked Enraged | 250 mg | Effective dose |
| Jocko Fuel Go Pre-Workout | 50 mg | Below research dose |
| RAW Nutrition CBUM Thavage | 100 mg | Below research dose |
| Thorne Pre-Workout Elite | 600 mg | Effective dose |