Psycho Pharma Edge of Insanity is the brand's flagship high-stimulant pre-workout — a fully disclosed formula built around 8,000mg of L-Citrulline Malate for pump, 3,200mg Beta-Alanine for endurance, and one of the most aggressive stimulant stacks in the category: 350mg Caffeine Anhydrous, Infinergy® Di-Caffeine Malate for extended energy, 20mg Theobromine, GABA for mental balance, Zembrin® (Sceletium tortuosum extract) for the zen-like focus Edge of Insanity is known for, 5mg Yohimbine HCl, and 4mg Alpha Yohimbine (Rauwolscine). Transparent label — every key dose disclosed on the label. Third-party tested. 25 servings per container. Rivals the most iconic high-stim pre-workouts ever made. This product can raise blood pressure significantly — start with half a scoop. Not for tested athletes — contains Yohimbine HCl, prohibited by WADA in-competition. Not for persons under 18. Do not combine with other stimulants. California Prop 65 Warning applies.†
WARNING: Edge of Insanity contains 350mg Caffeine Anhydrous, Yohimbine HCl (5mg), Alpha Yohimbine (4mg), and additional stimulant compounds. This is an extreme high-stimulant product. New users must assess tolerance with half a scoop. Do not combine with any other stimulants. Not for tested athletes — Yohimbine is prohibited by WADA in-competition. Not for persons under 18.
Supplement Facts — Psycho Pharma Edge of Insanity (Per 1 Scoop / 25 Servings)
Pump and Blood Flow
L-Citrulline Malate — 8,000mg (~5,333mg actual Citrulline + ~2,667mg Malic Acid at 2:1 ratio)
Endurance
Beta-Alanine — 3,200mg (clinical carnosine buffering dose)
Energy, Focus, and Stimulant Matrix
Caffeine Anhydrous — 350mg (immediate fast-acting energy)
Infinergy® Di-Caffeine Malate (extended-release caffeine for sustained energy without crash)
Theobromine — 20mg (vasodilator and extended energy duration)
GABA (Gamma-Aminobutyric Acid) (mental balance and zen-like focus)
Zembrin® (Sceletium tortuosum extract) (PDE4 inhibitor for mood elevation and focus clarity)
Yohimbine HCl — 5mg (alpha-2 adrenergic antagonist; fat mobilization and CNS stimulation)
Alpha Yohimbine (Rauwolscine) — 4mg (more potent yohimbine analog; adrenergic stimulation and thermogenesis)
Transparent label — all key doses disclosed
Third-party tested for purity and potency
25 servings per container
Mix 1 scoop in 10-14oz water 20-30 minutes before training
New users: start with half a scoop to assess tolerance
Do not exceed 1 scoop per 24-hour period
Do not take within 6 hours of bedtime
Do not combine with other stimulants, caffeine, or adrenergic compounds
Not for tested athletes — Yohimbine HCl is prohibited by WADA in-competition
Not for persons under 18. Not for pregnant or nursing women.
This product can raise blood pressure — consult a physician before use
California Prop 65 Warning applies.
The Edge of Insanity Story — What Built This Reputation
Edge of Insanity earned its name and its following through one mechanism: it delivers. In a pre-workout category filled with products that promise extreme energy and deliver moderate caffeine plus window-dressing ingredients at undisclosed doses, Edge of Insanity was one of the first products in its price range to combine fully disclosed clinical doses with a genuine high-stimulant experience. Psycho Pharma publishes every key dose openly, noting that "the science is all public so all supplement companies know how much they are supposed to be using to create a superior product" — and calls out competitors who hide dosages behind proprietary blends to conceal underdosing.†
The formula's reputation rests specifically on the dual-yohimbine stack — Yohimbine HCl at 5mg combined with Alpha Yohimbine (Rauwolscine) at 4mg alongside 350mg caffeine. Rauwolscine is the more potent stereoisomer of yohimbine, with greater alpha-2 adrenergic receptor affinity and a longer duration of action than standard yohimbine HCl. The combination of both yohimbine forms at meaningful doses alongside high-dose caffeine, Zembrin, GABA, and Infinergy produces the energy character that Edge of Insanity users consistently describe as qualitatively distinct from caffeine-only or even caffeine-plus-yohimbine products — more euphoric, more focused, longer-lasting, and harder-hitting than most competing formulas at similar price points.†
The Formula — What Each Compound Does
L-Citrulline Malate — 8,000mg — The Pump Foundation
Edge of Insanity contains 8,000mg of Citrulline Malate, which is considered a fully effective dosage. At 2:1 ratio, 8,000mg of Citrulline Malate delivers approximately 5,333mg of actual L-Citrulline alongside approximately 2,667mg of Malic Acid — the Krebs cycle intermediate that supports aerobic energy metabolism and lactic acid buffering alongside the Citrulline-driven NO production. The Citrulline converts to Arginine in the kidney, providing substrate for eNOS-mediated nitric oxide production, vasodilation, and the pump and blood flow improvements that make training feel better and deliver more nutrients to working muscle during the session.†
Beta-Alanine — 3,200mg — Clinical Endurance
Beta-Alanine works by increasing carnosine levels inside muscle cells which helps buffer acid buildup during intense exercise. The standard research-supported dosage is 3,200mg and Edge of Insanity delivers exactly that amount. The paresthesia (tingling) beginning 15-20 minutes after taking Edge of Insanity confirms the dose is active and bioavailable — a reliable quality indicator at this specific dose.†
Caffeine Anhydrous (350mg) + Infinergy® Di-Caffeine Malate — Extended Energy Architecture
Unlike traditional caffeine which hits quickly and fades quickly, Infinergy provides a longer lasting release of stimulation. The combination of Caffeine Anhydrous and Di-Caffeine Malate helps create both immediate energy and longer lasting stimulation throughout the workout. This helps many athletes avoid the sudden energy crash that can sometimes happen with caffeine-only formulas. At 350mg of Caffeine Anhydrous as the base — one of the highest straightforward caffeine doses in any pre-workout — Edge of Insanity's energy onset is fast and potent. The Infinergy Di-Caffeine Malate extends that energy well past the anhydrous caffeine's peak, producing the 4-5 hour total effect duration that Psycho Pharma documents.†
Zembrin® — The Zen-Like Focus Compound
Zembrin® is a patented, clinically tested extract of Sceletium tortuosum — a South African succulent used by indigenous peoples for centuries as a mood elevator, anxiety reducer, and cognitive enhancer. Zembrin's primary mechanism is PDE4 inhibition (phosphodiesterase-4 inhibition) — PDE4 breaks down cAMP (cyclic AMP), the second messenger that mediates the effects of dopamine, norepinephrine, and serotonin in the brain. By inhibiting PDE4, Zembrin allows cAMP to persist longer after catecholamine release, amplifying the effects of the dopamine and norepinephrine produced by the caffeine and yohimbine in the formula. The additional mechanisms include serotonin reuptake inhibition and 5-HT3 receptor activity. The combined effect is the "zen-like focus" that distinguishes Edge of Insanity's mental experience from pure stimulant products — motivated, euphoric, positive focus alongside the high-energy stimulant state.†
GABA — Mental Balance Under Stimulant Load
GABA (Gamma-Aminobutyric Acid) is the primary inhibitory neurotransmitter in the CNS — it provides the calming, balancing counterweight to the excitatory stimulant stack that surrounds it. In the context of 350mg caffeine, dual yohimbine, and Zembrin, GABA's inclusion helps prevent the anxious, overstimulated edge that high-dose stimulant stacks can produce in sensitive users. The practical effect is that Edge of Insanity's energy tends to feel more purposeful and focused than purely adrenergic — the GABA contribution to the overall neurotransmitter environment is part of what produces the "feel good focus" that the product is known for.†
Theobromine — 20mg — Extended Vasodilation and Energy Duration
Theobromine at 20mg is the smallest dose in the formula but serves a specific role. Theobromine is a stimulant that will improve blood flow throughout the body. When combined with caffeine, its effects amplify, enhancing attention span and brain function. Theobromine's 6-10 hour half-life extends the energy duration beyond both the caffeine anhydrous and Infinergy peaks — producing the tail-end energy that prevents the sudden hard stop that shorter-acting stimulant combinations create.†
Yohimbine HCl (5mg) + Alpha Yohimbine / Rauwolscine (4mg) — The Dual Yohimbine Stack
The combination of both yohimbine forms is Edge of Insanity's most distinctive and most consequential design choice. Yohimbine Hydrochloride, at a dosage of 5mg, will sustain fat-burning. It is an effective supplement that will increase thermogenesis, mental focus, and cognitive performance. Standard Yohimbine HCl blocks alpha-2 adrenergic receptors in fat cells — removing the inhibitory brake on lipolysis — while producing CNS stimulation through adrenergic activation.†
Alpha Yohimbine (Rauwolscine) is the more potent stereoisomer — it has greater binding affinity for alpha-2 receptors and a longer duration of action than standard yohimbine HCl. 4mg Rauwolscine (Alpha Y) gets you up and moving like an unstoppable freight train ready to crush PRs and achieve maximum gains. The combination of 5mg Yohimbine HCl and 4mg Alpha Yohimbine produces sustained adrenergic stimulation, fat mobilization, and the aggressive energy and drive that separate Edge of Insanity's stimulant experience from formulas that use a single yohimbine form or exclude it entirely. Both Yohimbine HCl and Rauwolscine are prohibited by WADA in-competition — not for tested athletes.†
Edge of Insanity vs. VITALS — The Psycho Pharma Lineup
Psycho Pharma now operates a two-product pre-workout lineup that covers the full stimulant spectrum. VITALS is the daily driver — no yohimbine, 10g pure Citrulline, 4g Betaine, 420mg caffeine, full Alpha GPC and Huperzine A cognitive stack, comprehensive and balanced. Edge of Insanity is the high-stim specialist — 8g Citrulline Malate, 350mg caffeine plus Infinergy, dual yohimbine (5mg + 4mg), Zembrin, GABA, Theobromine. VITALS is appropriate for five-day training weeks at consistent intensity. Edge of Insanity is for maximum-output sessions where the adrenergic edge of yohimbine is specifically wanted — the harder, more aggressive energy profile that serious high-stim athletes return to. They are complementary rather than redundant, covering different performance priorities.†
Frequently Asked Questions
Why does Edge of Insanity use both Yohimbine HCl and Alpha Yohimbine?
Standard Yohimbine HCl and Alpha Yohimbine (Rauwolscine) are stereoisomers — the same base compound in different molecular orientations that give them distinct pharmacological profiles. Standard Yohimbine HCl has faster onset and moderate duration. Rauwolscine has stronger alpha-2 receptor affinity and longer duration of action. Using both provides coverage across the full alpha-2 blockade timeline — faster onset from the HCl form and sustained adrenergic activity from the Rauwolscine. The combined 9mg total yohimbine alkaloid dose is what produces Edge of Insanity's distinctive energy character versus single-form yohimbine products.†What is Zembrin® and what does it feel like?
Zembrin® is a patented Sceletium tortuosum extract standardized for mesembrine — a PDE4 inhibitor and serotonin reuptake inhibitor with mood-elevating and anxiolytic properties. In the context of Edge of Insanity's high stimulant load, Zembrin produces the euphoric, positive, focused mental state that users describe as "zen-like" — motivated and energized without the anxious, wired overstimulation that high-dose caffeine and yohimbine alone can produce. It is the compound most responsible for the distinctive feel-good quality that separates Edge of Insanity from other high-stim products with similar caffeine and yohimbine dosing.†Is Edge of Insanity appropriate for tested athletes?
No. Edge of Insanity contains Yohimbine HCl and Alpha Yohimbine (Rauwolscine) — both are prohibited by WADA in-competition as specified stimulants. Athletes in any tested sport must not use this product. Psycho Pharma's Amazon listing states no WADA-banned substances — this claim is inaccurate with respect to Yohimbine, which is on WADA's 2024 prohibited list. Get Yok'd is clear on this: tested athletes should not use Edge of Insanity.†How long do the effects last?
The dual-caffeine architecture (fast-acting Caffeine Anhydrous + extended Infinergy Di-Caffeine Malate) plus Theobromine's long half-life produces a total effect duration of approximately 4-5 hours, with the peak intensity window at 2-3 hours after consumption. The Alpha Yohimbine's longer duration extends some of the adrenergic effects past the caffeine window. Do not take within 6 hours of bedtime — the combined stimulant duration will disrupt sleep even at the trailing end of the effect curve.†
How to Take Psycho Pharma Edge of Insanity
Mix 1 scoop in 10-14oz of cold water 20-30 minutes before training. New users and anyone with any uncertainty about stimulant tolerance must start with half a scoop — the combined load of 350mg caffeine, dual yohimbine, and Zembrin is significantly more potent than most standard pre-workouts and will overwhelm users who are not prepared for it. Do not exceed 1 scoop per 24-hour period. Do not combine with coffee, energy drinks, other caffeinated products, or any stimulant supplements. Do not use within 6 hours of bedtime. This product can raise blood pressure — individuals with cardiovascular conditions must not use without physician clearance. Not for persons under 18. Not for pregnant or nursing women. Not for tested athletes — contains WADA-prohibited Yohimbine HCl and Alpha Yohimbine. Discontinue if rapid heartbeat, dizziness, severe headache, or shortness of breath occurs. Consult a physician before use if taking any prescription medications. California Prop 65 Warning applies.†
Why Buy at Get Yok'd
Real-time inventory across all five Southern California stores
Available in Burbank, Glendale, Glendale Galleria, Pasadena, and North Hollywood
Authorized Psycho Pharma retailer — carrying Edge of Insanity and VITALS
Staff who can walk you through the Psycho Pharma lineup and help you choose the right formula for your experience level and training goals
One of the best loyalty programs in the supplement industry — earn rewards on every purchase
Who Should Not Take Edge of Insanity
Not for persons under 18 years of age
Not for pregnant or nursing women
Not for tested athletes — contains Yohimbine HCl and Alpha Yohimbine (Rauwolscine), both prohibited by WADA in-competition
Not for individuals with cardiovascular conditions, high blood pressure, or heart arrhythmia — combined caffeine and dual yohimbine produces significant cardiovascular stimulation
Not for individuals with anxiety disorders — dual yohimbine combined with 350mg caffeine amplifies anxiety severely in susceptible individuals
Not for individuals with liver or kidney disease without physician clearance
Not for individuals with psychiatric disorders or on psychiatric medications without physician clearance
Do not combine with other stimulants, caffeine sources, fat burners, or MAO inhibitors
Do not use within 6 hours of bedtime
Discontinue if rapid heartbeat, dizziness, severe headache, or shortness of breath occurs
Discontinue use 2 weeks before any scheduled surgery
Consult a physician before use if taking any prescription medications
California Prop 65 Warning applies.
Keep out of reach of children.
†These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.