

Energy
Sour Surge Pre-Workout
Paraxanthine Pre-Workout – Sour Surge
Energy and focus for the session from 150 mg enfinity® paraxanthine, plus full doses of citrulline and beta-alanine for pump and endurance. Sugar-free, no artificial sweeteners.†
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- Every dose on the label, no proprietary blends
- Made in the USA in a GMP-certified facility
- Certificates of Analysis on our Lab Results page
- Questions? Email maxislabs.help@gmail.com


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Who it's for
Is Sour Surge Pre-Workout for you?
You train after work and need to show up with energy.
You want every dose on the label, not a proprietary blend.
You want pump and endurance from fully disclosed doses.
How to take it
Simple, daily, consistent
Mix 1.5 scoops with 12 oz water 20–30 minutes before training. Start with 1 scoop to check tolerance. Never more than 2 scoops in 24 hours.
What to expect
- 10–15 minA light tingle from beta-alanine. It is normal and fades.
- 20–30 minEnergy and focus kick in.†
- 2–4 weeksDaily beta-alanine builds up in muscle and supports endurance in hard sets.†
Don't double up
Do not stack with other pre-workouts or energy drinks.
Safety, plainly
- Not for anyone under 18, pregnant or breastfeeding.
- Contains paraxanthine, a stimulant related to caffeine. Count your coffee and energy drinks, and avoid within 6 hours of bed.
- Talk to your doctor first if you have a heart condition, high blood pressure or take medication.
The difference
Sour Surge Pre-Workout vs. the typical option
| MAXIS Sour Surge Pre-Workout | Typical | |
|---|---|---|
| Stimulant | 150 mg paraxanthine | 300+ mg caffeine |
| Doses on the label | Every ingredient listed | Often a proprietary blend |
| Sweeteners and colors | Allulose and stevia, no artificial colors | Sucralose, artificial colors |
| Sugar | 0 g added | Varies |
What's inside
Supplement Facts

Full product details
Paraxanthine energy with CarnoSyn® beta-alanine. 1.5 scoops per serving.
MAXIS Pre-Workout Sour Surge combines enfinity® paraxanthine, CarnoSyn® beta-alanine, MalTor™ taurine-L-malic acid complex and L-citrulline malate with vitamin B12 and electrolytes. Supports energy, endurance and performance.†
Each tub contains 460 g (16.23 oz): about 27 servings of 1.5 scoops (17.25 g). Naturally flavored, no sugar.
Amounts per serving (1.5 scoops, 17.25 g)
- Calories: 60
- Total Carbohydrate: 2 g (1% DV)
- Vitamin B12 (as methylcobalamin): 750 mcg (31,250% DV)
- Magnesium (from magnesium citrate): 75 mg (18% DV)
- Chloride (from pink Himalayan sea salt): 188 mg (8% DV)
- Sodium (from pink Himalayan sea salt): 150 mg (7% DV)
- Potassium (from potassium citrate): 98 mg (2% DV)
- Muscle Performance & Recovery Blend†: 6,150 mg — MalTor™ Taurine-L-Malic Acid Complex 3,750 mg; CarnoSyn® Beta-Alanine 2,400 mg
- Nitric Oxide Blend†: 4,725 mg — L-Citrulline Malate 4,500 mg; Organic Beet Root Powder 225 mg
- Energy & Focus Blend†: 300 mg — enfinity® Paraxanthine 150 mg; Cocoa Bean Extract 150 mg
Every ingredient inside each blend is listed with its own amount. No proprietary blends.
Suggested use: As a dietary supplement, adults mix one and a half (1.5) scoops with twelve (12) oz of water and consume 20–30 minutes before training, or as directed by a healthcare professional. To assess tolerance, begin with one (1) scoop. Do not exceed two (2) scoops in a 24-hour period. Not recommended for children under 18 years of age.
Other ingredients: Allulose, natural flavor, stevia leaf extract (Reb M), silica.
Free of: Sugar, dairy, yeast, wheat, gluten, eggs, peanuts, soy, tree nuts, fish, shellfish, preservatives, artificial colors or flavors.
Storage: Store in a cool, dry place away from direct light. 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.
Natural Alternatives International (NAI) is the owner of patents as listed on www.carnosyn.com and the registered trademark CarnoSyn®. MalTor™ is a trademark of Nutriscience Innovations LLC. enfinity® is a registered trademark of enfinity energy LLC, Texas, USA.
Pairs well with
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Questions
Sour Surge Pre-Workout FAQ
Read the research
What is paraxanthine?
The main compound your body turns caffeine into. It gives energy and focus with less of the jittery edge many people get from caffeine.
Why does it make my skin tingle?
That is beta-alanine. The tingle is harmless and usually fades within an hour and with regular use.
Can I have coffee too?
Keep total stimulants sensible. If you are sensitive, skip coffee within a few hours of your scoop.
Will it keep me up?
Paraxanthine clears faster than caffeine for most people, but avoid it within about 6 hours of bed.
†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.





