Check a label

Thorne · Pre-workout

Is Thorne Pre-Workout Elite underdosed?

1 scoop = 5.1 g24 scoopsLabel as of 21 Dec 2024 · NIH DSLD
Verdict

Below research dose on its 1 key ingredient.

Caffeine is below the amounts studies use. Caffeine is below 3 mg/kg at 75 kg.

Effective dose
2
Below research dose
1
Hidden in a blend
0
Too much
0

Ingredient by ingredient

Per scoop · bodyweight 75 kg (default)
  • Caterpillar Mushroom (Cordyceps militaris)Per scoop In a blendStudies Not setNot gradedNot graded

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

  • Reishi Mushroom (Ganoderma lucidum)Per scoop In a blendStudies Not setNot gradedNot graded

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

  • King TrumpetPer scoop In a blendStudies Not setNot gradedNot graded

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

  • Shiitake MushroomPer scoop In a blendStudies Not setNot gradedNot graded

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

  • Lion's Mane Mushroom (Hericium erinaceus)Per scoop In a blendStudies Not setNot gradedNot graded

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

  • Turkey Tail Mushroom (Trametes versicolor)Per scoop In a blendStudies Not setNot gradedNot graded

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

  • Alpha-GPCLabel: Alpha-Glycerylphosphorylcholine (L-Alpha-Glycerylphosphorylcholine)Per scoop 600 mgStudies 250–600 mg/dayEffective doseWeak

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

  • ATP (Adenosine 5'-Triphosphate)Label: Peak ATP (Adenosine 5' Triphosphate Disodium)Per scoop 450 mgStudies 400 mgEffective doseWeak

    Contains 450 mg; studies use 400 mg.

  • CaffeineLabel: Guayusa leaf extractPer scoop 70 mgStudies 3–6 mg/kgBelow research doseStrong

    Contains 70 mg (0.9 mg/kg at 75 kg); studies use 3–6 mg/kg.

  • Zynamite (Mango Leaf Extract)Per scoop 140 mgStudies Not setNot gradedNot graded

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

  • Quercetin Phytosome (Phospholipid Complex, Sophora japonica Flower Extract)Per scoop 35 mgStudies Not setNot gradedNot graded

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

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.

PeakO2
Proprietary blend · 6 ingredients · amounts not disclosed
1 g total

US labels must list blend ingredients heaviest first (21 CFR 101.36). So the 1st is at least 1/6 of the blend, the 2nd can be at most half, the 3rd at most a third, and so on.

    How many scoops would it take?

    To reach the low end of the research dose for each underdosed ingredient.

    Caffeine to 225 mg
    3.2 scoops
    brings 225 mg caffeine

    Where the reference doses come from

    1. Alpha-GPC, 250–600 mg/day: Bellar et al., 2015Marcus et al., 2017.
    2. ATP (Adenosine 5'-Triphosphate), 400 mg: Fambrini et al., 2024González-Marenco et al., 2024.
    3. Caffeine, 3–6 mg/kg: Guest et al., 2021.
    4. Daily caffeine reference, 400 mg: US FDA, Spilling the Beans.
    5. Blend order rule: 21 CFR 101.36.
    6. Label data: National Institutes of Health, Office of Dietary Supplements. Dietary Supplement Label Database, 2026. https://dsld.od.nih.gov/. Label 323126.

    Assumptions used on this page: The label doesn't say how many scoops make a serving, so one serving is counted as one scoop.

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