Check a label

Ghost · Pre-workout

Is Ghost Legend All Out underdosed?

1 scoop = 21 g20 scoopsLabel as of 24 Jul 2025 · NIH DSLD
Verdict

Too much caffeine; effective dose on 3 of 4 key ingredients.

One serving reaches the 400 mg daily caffeine reference on its own.

Effective dose
4
Below research dose
0
Hidden in a blend
0
Too much
1

Ingredient by ingredient

Per scoop · bodyweight 75 kg (default)
  • Vitamin CLabel: Vitamin C (Ascorbic Acid)Per scoop 250 mgStudies Not setNot gradedNot graded

    Contains 250 mg. A vitamin or mineral: we grade a pre-workout’s ingredients against exercise studies; vitamins and minerals are graded only on their own supplement pages.

  • L-CitrullineLabel: Citrulline; CitrullinePer scoop 6 gStudies 4–5.33 gEffective doseWeak

    Contains 6 g; studies use 4–5.33 g.

  • Beta-AlaninePer scoop 3.2 gStudies 3.2–6.4 g/dayEffective doseStrong

    Contains 3.2 g; studies use 3.2–6.4 g/day.

  • Betaine AnhydrousPer scoop 2.5 gStudies 2.5 g/dayEffective doseModerate

    Contains 2.5 g; studies use 2.5 g/day.

  • L-TyrosineLabel: L-Tyrosine [vegan fermented]Per scoop 2 gStudies Not setNot gradedNot graded

    Contains 2 g. Not graded: a 2023 meta-analysis found no effect on endurance; its evidence is for focus under stress, at about 150 mg per kg of bodyweight.

  • Alpha-GPCLabel: Alpha-GlycerylphosphorylcholinePer scoop 300 mgStudies 250–600 mg/dayEffective doseWeak

    Contains 300 mg; studies use 250–600 mg/day.

  • CaffeineLabel: Caffeine Anhydrous; ZumXR Extended-Release Caffeine [delivering] [delivering 100 mg caffeine]Per scoop 400 mgStudies 3–6 mg/kgToo muchStrong

    Contains 400 mg in one serving, at or above the 400 mg daily reference.

  • TheobrominePer scoop 100 mgStudies Not setNot gradedNot graded

    Contains 100 mg. Not graded: there is no peer-reviewed exercise trial, and 100–400 mg did not change mood or alertness in human studies.

  • Bitter Orange Fruit ExtractPer scoop 60 mgStudies Not setNot gradedNot graded

    Not graded: we have no research dose for it from exercise studies.

  • AstraGinLabel: AstraGin (Astragalus membranaceous Root Extract, Panax notoginseng Root Extract)Per scoop 50 mgStudies Not setNot gradedNot graded

    Contains 50 mg. Not graded: added to help the body absorb other ingredients; it has no dose of its own to judge.

Use “Check it for your dose” to see this table for your own scoops and bodyweight. Only caffeine is dosed per kilogram in the studies we cite; the other research doses are fixed amounts, so your weight doesn't change them.

Where the reference doses come from

  1. Alpha-GPC, 250–600 mg/day: Bellar et al., 2015Marcus et al., 2017.
  2. Beta-Alanine, 3.2–6.4 g/day: Harris et al., 2006Hobson et al., 2012Trexler et al., 2015.
  3. Betaine Anhydrous, 2.5 g/day: Cholewa et al., 2013Hoffman et al., 2009Zawieja et al., 2024.
  4. Caffeine, 3–6 mg/kg: Guest et al., 2021.
  5. L-Citrulline, 4–5.33 g: Gough et al., 2021Vårvik et al., 2021.
  6. Vitamin C, 200–1000 mg/day: Frei et al., 2012Gonzalez et al., 2026Levine et al., 1996.
  7. Daily caffeine reference, 400 mg: US FDA, Spilling the Beans.
  8. Label data: National Institutes of Health, Office of Dietary Supplements. Dietary Supplement Label Database, 2026. https://dsld.od.nih.gov/. Label 333833.

Methodology 1.11. Read the full methodology or the corrections log.