Is Psycho Pharma Edge of Insanity underdosed?

• L-CitrullineLabel: L-Citrulline Malate [2:1]Per scoop 5.33 gStudies 4–5.33 gEffective doseEvidence: Weak

  Contains 5.33 g; studies use 4–5.33 g.

  ASSUMPTION: "2:1" is read as a weight ratio (2 parts L-citrulline to 1 part malic acid), so 2/3 of the stated weight is counted as L-citrulline. Applied only when the label does not state the citrulline amount itself. If 2:1 were a molar ratio the share would be about 72% (2 x 175.19 / (2 x 175.19 + 134.09)); the weight reading gives the lower citrulline figure.

• Beta-AlaninePer scoop 3.2 gStudies 3.2–6.4 g/dayEffective doseEvidence: Strong

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

• CaffeineLabel: Caffeine Anhydrous; Infinergy (Dicaffeine Malate)Per scoop 350 mgStudies 3–6 mg/kgEffective doseEvidence: Strong

  Contains 350 mg (4.7 mg/kg at 75 kg); studies use 3–6 mg/kg.

• TheobrominePer scoop 20 mgStudies Not setNot gradedEvidence: Not graded

  Contains 20 mg. Not graded: there is no peer-reviewed exercise trial, and 100–400 mg did not change mood or alertness in human studies.

• Yohimbine Hydrochloride (Pausinystalia yohimbe)Per scoop 5 mgStudies Not setNot gradedEvidence: Not graded

  Not graded: a stimulant we have no research dose for. Its effects add to the caffeine's.

• Alpha-Yohimbine Hydrochloride (Rauwolfia vomitoria)Per scoop 4 mgStudies Not setNot gradedEvidence: Not graded

  Not graded: a stimulant we have no research dose for. Its effects add to the caffeine's.

• Gamma-Aminobutyric AcidPer scoop 1 gStudies Not setNot gradedEvidence: Not 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.

How many scoops would it take?

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

Taking more doesn't fix this product. Reaching those doses means more than 400 mg of caffeine from the scoops alone, above the FDA's 400 mg daily reference for most adults, before any coffee.

Where the reference doses come from

1. Beta-Alanine, 3.2–6.4 g/day: Harris et al., 2006Hobson et al., 2012Trexler et al., 2015.
2. Caffeine, 3–6 mg/kg: Guest et al., 2021.
3. L-Citrulline, 4–5.33 g: Gough et al., 2021Vårvik et al., 2021.
4. Daily caffeine reference, 400 mg: US FDA, Spilling the Beans.
5. Label data: National Institutes of Health, Office of Dietary Supplements. Dietary Supplement Label Database, 2026. https://dsld.od.nih.gov/. Label 327765.

Assumptions used on this page: ASSUMPTION: "2:1" is read as a weight ratio (2 parts L-citrulline to 1 part malic acid), so 2/3 of the stated weight is counted as L-citrulline. Applied only when the label does not state the citrulline amount itself. If 2:1 were a molar ratio the share would be about 72% (2 x 175.19 / (2 x 175.19 + 134.09)); the weight reading gives the lower citrulline figure.

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