Enhanced Labs - Maximus Stim Pre-Workout

Enhanced Labs Maximus Stim: High-Stim Pre-Workout

Maximus Stim is a fully loaded, high-stimulant pre-workout built for athletes who demand explosive energy, locked-in focus, and skin-splitting pumps without jitters or a mid-session crash. With 20+ ingredients and 9 trademarked compounds, every system is addressed—energy, pumps, endurance, and cognition—in a single serving.

Rather than relying on a single large caffeine dose, Maximus Stim layers PurCaf®, Dynamine®, and TeaCrine® to create a three-stage energy curve that hits fast and sustains itself throughout training without the cliff-drop that plagues single-source caffeine products.

Quick Specs

• Serving size: 1 scoop (20.57g) | 20 servings per container
• Caffeine content: 302mg from PurCaf® (natural caffeine)
• Key doses: 6g L-Citrulline, 3.2g Beta Alanine, 1.5g Betaine Anhydrous, 1g PeakO2®, 1g Taurine
• Trademarked compounds: 9 (PurCaf®, Dynamine®, TeaCrine®, PeakO2®, AgMass®, ElevATP®, EndoFlo™, GeniusPure™, NeuroRush™)
• Tolerance tip: Start with half a scoop to assess tolerance. Do not exceed one serving per day.

Four Performance Systems Explained

Maximus Stim is structured around four simultaneous performance pillars—energy, pumps and strength, endurance, and focus—each addressed by dedicated ingredient groups working in parallel throughout every training session.

Energy System: Three-Stage Stimulant Curve

PurCaf® (302mg organic caffeine) provides the immediate energy ignition, while Dynamine® (methylliberine, 125mg) and TeaCrine® (theacrine, 63mg) extend and smooth the energy curve, reducing the sharp spike-and-crash pattern associated with high caffeine doses alone. Together, these three compounds have been studied for their synergistic ability to sustain alertness and motivation without increasing anxiety.

Pump & Strength System

L-Citrulline (6g), AgMass® arginine silicate, Beta Alanine (3.2g), Betaine Anhydrous (1.5g), and Taurine (1g) promote nitric oxide production, buffer lactic acid accumulation, and support cellular volumization for meaningful increases in pump, strength endurance, and vascularity.

Endurance System

PeakO2® (1g) delivers six adaptogenic mushrooms to help support oxygen utilization and training capacity, while EndoFlo™ promotes endothelial function and circulation for sustained intensity deeper into training sessions.

Neural & Focus System

GeniusPure™ Alpha GPC 90% (300mg), N-Acetyl L-Tyrosine (350mg), L-Tyrosine (1g), NeuroRush™ (150mg), and Huperzine A combine to promote acetylcholine production, support dopamine and norepinephrine pathways, and help sustain mental sharpness through every set.

Full Ingredient Profile

Stimulant & Energy Compounds

• PurCaf® 302mg: Patented natural organic caffeine sourced from green coffee beans, promoting faster absorption and cleaner energy output compared to synthetic caffeine anhydrous.
• Dynamine® 125mg (40% Methylliberine): Purine alkaloid from kucha tea leaf that promotes rapid onset energy and mood elevation, amplifying caffeine's effect while helping to reduce post-workout fatigue.
• TeaCrine® 63mg (40% Theacrine): Nature-identical compound that promotes smooth, sustained energy without tolerance buildup, extending the energy window beyond what caffeine alone provides.
• Vitamin B3 (Niacin): Supports energy metabolism pathways and promotes vasodilatory blood flow.
• Vitamin B12 (Methylcobalamin): Active B12 form supporting cellular energy production and red blood cell activity.

Pump & Blood Flow

• L-Citrulline 6g: Promotes nitric oxide synthesis for enhanced blood flow, muscle fullness, and nutrient delivery during training.
• AgMass® (Arginine Silicate): Patented arginine source that helps extend and stabilize plasma arginine levels for sustained nitric oxide support.
• Taurine 1g: Organic acid that supports cellular hydration and muscle contractions, with additional benefits for focus and endurance.
• Sodium (Himalayan Pink Salt) 100mg: Electrolyte support for hydration balance and muscle function throughout training.

Strength & Endurance

• Beta Alanine 3.2g: Full clinical dose to help buffer muscle acidity, supporting endurance during high-rep and high-intensity efforts.
• Betaine Anhydrous 1.5g: Osmolyte that promotes cellular hydration and supports power output and muscular endurance.
• L-Carnitine L-Tartrate: Promotes fatty acid transport for cellular energy and helps support recovery between sets and sessions.
• ElevATP® 150mg: Patented ancient peat and apple extract studied for its role in supporting intracellular ATP production.
• PeakO2® 1g: Patented adaptogenic mushroom blend (Cordyceps, Reishi, King Trumpet, Shiitake, Lion's Mane, Turkey Tail) to support oxygen utilization and training capacity.
• EndoFlo™: Patented botanical blend (Mangifera indica, Kaempferia parvifloria, Ginkgo biloba, Pinus massoniana) promoting endothelial function and blood flow efficiency.

Nootropics & Cognitive Support

• GeniusPure™ Alpha GPC 90% — 300mg: Premium high-bioavailability choline source supporting acetylcholine production for sharp focus and mind-muscle connection.
• N-Acetyl L-Tyrosine 350mg: Highly bioavailable form of tyrosine, precursor to dopamine and norepinephrine supporting sustained focus and mood under training stress.
• L-Tyrosine 1g: Additional tyrosine to further support neurotransmitter synthesis during intense sessions.
• NeuroRush™ 150mg: Patented Coffee arabica fruit extract studied for cognitive performance and mental clarity support.
• Huperzine A: Acetylcholinesterase inhibitor that helps sustain acetylcholine levels for prolonged mental sharpness throughout training.

Synergistic Formula Design

Maximus Stim's standout design decision is its triple-stacked stimulant architecture. PurCaf® hits immediately, Dynamine® fills in the middle of the session, and TeaCrine® extends the tail end—together eliminating the sharp crash that single-caffeine formulas produce, while each compound complements the others' bioavailability.

Dual-Form Tyrosine Advantage

Combining L-Tyrosine (1g) and N-Acetyl L-Tyrosine (350mg) gives both immediate bioavailability from the acetylated form and a sustained release from standard L-Tyrosine, supporting consistent dopamine and norepinephrine output across an entire training session rather than a single spike early on.

Stacking with Maximus Pump

Maximus Stim is designed to work standalone or stacked with Maximus Pump for maximum effect. On heavy days, combining both delivers 14g total citrulline, full glycerol loading via HydroPrime™, and the complete stimulant and nootropic stack in one protocol.

Supplement Facts

Other Ingredients: Malic Acid, Silicon Dioxide, Natural & Artificial Flavors, Sucralose, Stevia. (Confirm against physical label.)

About Enhanced Labs

Enhanced Labs develops performance-first formulas built on fully disclosed, clinically relevant dosing with patented ingredient technology, manufactured in an FDA-inspected facility with a 100% money-back guarantee.

Explore the full lineup on our Enhanced Labs collection page.

Recommended Use

Standard Protocol

Mix 1 scoop (20.57g) in 6–8 oz of cold water and consume 15–30 minutes before training.

First-Time Use

Assess tolerance by starting with half a scoop. Do not exceed one serving per day. Due to 302mg of caffeine per full serving, do not combine with other caffeinated products.

Stack Protocol

For maximum pump and performance, stack with Maximus Pump. The stimulant foundation in Stim combined with the additional citrulline, HydroPrime™ glycerol, and Nitrosigine® in Pump creates the full dual-pre-workout experience Enhanced Labs designed the two products around.

Who Maximus Stim Is For

• Experienced stimulant users: Athletes with established caffeine tolerance who need a meaningfully higher-stim product to feel a training effect.
• Powerlifters & strength athletes: Heavy-load sessions where maximum focus and aggression matter alongside physical output.
• Bodybuilders: High-volume training where sustained energy through long sessions is critical.
• Stim stackers: Athletes wanting to combine Stim with Maximus Pump for the complete Enhanced Labs pre-workout protocol.

Not recommended for: Stimulant-sensitive individuals, evening training when sleep is a priority, or those under 18. Always assess tolerance at half a scoop first.

How Maximus Stim Compares

Complete Your Stack

• Enhanced Labs Maximus Pump – Stim-free partner for the ultimate dual-pre-workout stack.
• Pre-Workout Collection – All stimulant and stim-free options.
• Enhanced Labs Full Line – Complete brand lineup.
• Recovery Formulas – Post-workout support to match your output.

FDA Disclaimer & Warnings

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.

• Contains 302mg of caffeine per serving. Do not combine with other caffeinated supplements, foods, or medications.
• Start with half a scoop to assess individual tolerance. Do not exceed one serving per 24 hours.
• Beta Alanine may cause a temporary, harmless tingling sensation (paresthesia)—this is normal and not an adverse reaction.
• Not intended for use by individuals under 18, or those who are pregnant, nursing, or have a history of heart conditions, high blood pressure, anxiety, or sensitivity to stimulants.
• Consult a licensed healthcare professional before use if taking any medication or if you have a pre-existing medical condition.
• Discontinue use if adverse reactions occur. Keep out of reach of children.
• Store in a cool, dry place away from heat and moisture.