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Insane thermogenic effect! Zero jitters, 24/7 fat burning, stubborn fat melted. You FEEL it working!

Alex D.

Verified Buyer

4.8/5
1,655+ Customer Reviews
4.8/5
1,655+ Customer Reviews
THE STUBBORN FAT LOSS STACK
Torch calories on both workout AND rest days with just 2 steps a day.
$87
$187.39
SAVE $100.39
Welcome Kit Includes
  • 1x Stubborn Fat Loss Stack ($129.98 value)
  • FREE Alpha Sports Shaker ($16.95 value)
  • FREE Protein Sample Kit ($10.47 value)
  • FREE Creatine 60 servings ($29.99 value)
SELECT FLAVORS
Hulk Juice
Sour Gummy Bear
PRE-WORKOUT
Blazeberry
Blueberry Gummy Bear
PRE-WORKOUT
Cherry Popper
Sweet Black Cherry
PRE-WORKOUT
Grapezilla
Grape Bubblegum
BURN2O
Shred Berry
Strawberry & Vanilla
BURN2O
Fiery Punch
Tropical Fruit Punch
BURN2O
Try It Now
$187.39
$87.00
Refill Ships in 30 days
Change or Cancel Anytime
Monthly subscription benefits
  • Free Welcome Kit - $57.41 in Savings
  • Lock 33% Off Forever
  • Claim 10% Cashback with EVERY Order
  • Pause, Skip or Cancel Anytime
TRY IT ONCE - NO AUTOSHIP ($99.00)
Keep your fat-burning momentum rolling—subscribe now so every month you’re fully stocked to crush your goals and keep the transformation alive.
Low Supply
hourglass copy@1x
16 orders at this price remaining

365-Day Money Back Guarantee

America’s best-selling 2-1 pre-workout + the world's FIRST liquid thermogenic fat burner now available in one stack that burns fat around the clock.
The stack uses a dual-action approach for 24/7 fat burning. Superhuman Burn ignites thermogenesis during workouts with 7 patented ingredients including MitoBurn® (converts white fat to brown fat) and CaloriBurn GP® (activates brown adipose tissue). Burn2O keeps your metabolism elevated even on rest days through the world's first liquid combination of fat-burning ingredients. Together, they target stubborn fat from every angle.
Most fat burners only work during workouts OR throughout the day, never both. This stack covers all angles with 7 patented ingredients (vs generic compounds), liquid + powder delivery for maximum absorption, and clinical doses with published human studies. Plus, you'll literally feel it working within minutes thanks to GBB's thermogenic "sweat effect."
You get both products: Superhuman Burn (21 servings of 2-in-1 fat-burning pre-workout) and Burn2O (31 servings of caffeine-free liquid thermogenic shots). Plus, subscribers get a free welcome kit worth $57.41 including premium shaker bottle, protein samples, and 60-day creatine supply.
Standard orders ship within 1-2 business days. Domestic delivery typically takes 3-5 business days. International shipping available with rates calculated at checkout. All orders are tracked and you'll receive confirmation once shipped.
We offer a 365-day money-back guarantee, the longest in the industry. Try the entire stack for a full year. If you don't experience faster fat loss and feel the thermogenic effects, we'll refund every penny. No questions asked, and you keep any free welcome gifts.

I am up at 4:45am every morning and this really gets me going for my workout! I love the burn, the sweat, it really makes me feel like I’m putting in the work! Re-ordered 4 more!

Jason T.

Verified Buyer

SUPERCHARGE YOUR FAT-LOSS

IN 2 SIMPLE STEPS

Stubborn Belly Fat Finally Gone

I've tried every fat burner on the market, but nothing came close to this stack. Within the first week, I could feel the thermogenic effects during AND after my workouts. The liquid shot on rest days keeps my metabolism firing 24/7. Finally lost that stubborn lower belly fat that wouldn't budge for months.

Sarah M.
VERIFIED BUYER

12 Lbs Lost, Zero Jitters

As someone who's caffeine sensitive, I was skeptical about fat burners. But Burn2O gives me that intense sweat session without any jitters. Combined with Superhuman Burn pre-workout, I'm literally melting fat faster than I ever thought possible. Down 12 lbs in 4 weeks.

Mike T.
VERIFIED BUYER

Feel the Burn Working

The 'walking fat-burning sauna' description is no joke. I feel the heat within minutes of taking either product. My trainer noticed my body composition changes after just 2 weeks. This stack doesn't just work — you can FEEL it working.

Jessica R.
VERIFIED BUYER
WHAT HAPPENS TO YOUR BODY

after the STUBBORN FAT LOSS STACK

after the STUBBORN FAT LOSS STACK

#1. Superhuman Burn

Ignites thermogenesis to incinerate stubborn fat during workouts

Gives you the best workout performance, massive pumps, and accelerates fat loss during workouts through 7 patented ingredients. 

MitoBurn® converts white fat to brown fat for 5.3X more cellular fat burning.
CaloriBurn GP® activates brown adipose tissue, raising metabolic rate by 400% within 30 minutes.
GBB (Super Carnitine) increases carnitine levels up to 300%, shuttling fatty acids directly into mitochondria to be burned as fuel.

#2. Burn 2O

Take it during rest days or anytime for 24/7 fat burning

BURN2O keeps the fat-incinerating furnace active even on rest days. The world's FIRST liquid combining MitoBurn® + CaloriBurn GP® + L-Carnitine + GBB.

Studies show participants burned 5X more calories over 2 hours vs placebo and lost 4.59 lbs of body fat on average.
This liquid formula activates thermogenesis, converts white fat to brown fat, and elevates metabolism—even while you sleep.

Together, they create a synergistic fat-burning routine that targets stubborn fat from every possible angle while giving you the energy and performance boosters to build muscle & get in the best shape of your life. MitoBurn® acts as an "exercise signal" even on rest days. CaloriBurn GP® specifically reduces visceral belly fat. GBB ensures maximum fatty acid transport. You're essentially getting the metabolic benefits of exercise 24/7.

The result: Clinical-grade thermogenesis that makes you feel the heat within minutes, sweat like never before, and watch stubborn fat disappear faster than you ever thought possible.

5.3X
More Cellular Fat Burning
MitoBurn® transforms how your cells burn fat.
400%
Metabolic Rate Increase
CaloriBurn GP® supercharges your metabolism in 30 minutes.
5X
More Calories Burned
Burn 5X more calories over 2 hours vs placebo.
4.59 LBS
Average Fat Loss
Clinically proven body fat reduction.
YOUR FAT BURNING PROTOCOL

TRAINING DAYS

1
SUPERHUMAN BURN
PRE-WORKOUT
Mix 1 scoop of Superhuman Burn with 8-10oz of cold water and consume 15-30 minutes before training. If new to pre-workouts, start with 1/2 scoop to assess tolerance.
2
BURN2O
Mid-Day or Post-Workout
Take 1/2 cap full (15ml) of Burn2O like a shot. You'll feel the thermogenic effects within 15-30 minutes, this will give you a boost of clean energy without stimulants that won't mess with your sleep and recovery, while continue the fat burning as your metabolism kicks into high gear.
RESULT
Maximum calorie incineration during training with sustained thermogenesis throughout the day.

NON-TRAINING DAYS

1
BURN2O
morning
Take 1/2 cap (15ml) of Burn2O in the morning to kickstart metabolism and a get that boost of clean energy without stimulants.
2
BURN2O
afternoon - optional
Take a second shot of Burn2O for enhanced fat burning, ideally 4-6 hours after the first dose.
RESULT
Continuous thermogenesis and fat burning even on your rest days.

Powerful Ingredients That Bring Visible Results

SUPERHUMAN BURN

MitoBurn®
(L-BAIBA)
Breakthrough exercise mimetic compound
500mg clinical dose
CaloriBurn GP® (Grains of Paradise)
Activated Grains of Paradise extract
40mg thermogenic dose
GBB (Super Carnitinine)
Enhanced carnitine precursor
25mg sweat-inducing dose
L-Citrulline
Pure amino acid for nitric oxide
6g performance dose
Beta-Alanine
Muscle endurance enhancer
3.2g clinical dose
L-Tyrosine
Amino acid for focus and resilience
1g performance dose
Sensoril®
Patented ashwagandha for stress control
250mg clinical dose

BURN2O

L-Carnitine
Shuttles fatty acids into mitochondria for fuel conversion
2000mg fat-burning dose
MitoBurn®
(L-BAIBA)
Exercise-mimicking compound that elevates metabolism
500mg clinical dose
CaloriBurn GP® (Grains of Paradise)
Activated Grains of Paradise extract
10mg thermogenic dose
GBB (Super Carnitinine)
Boosts natural carnitine production and thermogenesis
25mg sweat-inducing dose

The Only Stack That Does It All

Dual-Action Coverage (Workout + Rest Days)
Superior Carnitine Absorption
Exercise-Mimicking Benefits
Brown Fat Activation
Feel Effects Within Minutes
Convenience & Simplicity
Stimulant-Free Option
Targets Visceral Belly Fat
No Crashes or Tolerance
Stubborn Fat Loss Stack
L-Carnitine Alone
Separate Pre + Fat Burner
High-Stim Fat Burners

less fat. more savings.

Other fat burner stacks cost an arm and a leg. The Stubborn Fat Loss Stack permanently reduces your stubborn fat, without breaking the bank.
SFL STACK
just $87/month
BUYING SEPARATELY
$129.98**
COMPETITOR STACKS
$149.99*
PRESCRIPTION WEIGHT-LOSS
$300+*
*Average monthly cost based on market pricing
**Cost if Superhuman Burn + Burn2O bought separately

365-DAY MONEY BACK GUARANTEE

WE'RE SO CONFIDENT, WE'LL BET A FULL YEAR ON YOUR SUCCESS

If you don't experience the most dramatic fat-burning transformation of your life with the Stubborn Fat Loss Stack, you have 365 full days to ask for a complete refund.

That's right - a full year to prove this stack works.

GET STARTED with FREE GIFTS

Join 134,000+ customers getting shredded faster

You Starter Kit Includes
Stubborn Fat Loss Stack
Superhuman Burn + Burn2O
$129.98
$87/mo
FIRST TIME PURCHASE INCLUDES:
Alpha Sports Shaker
Professional-grade 28oz shaker with leak-proof design.
$16.95
FREE
Protein Sample Pack
Taste-test our best-selling protein flavors.
$10.47
FREE
Creatine Monohydrate 60s
Pure creatine for strength gains and recovery.
$29.99
FREE
Total
$187.39
$87/mo
54% OFF
Get Started

For the curious.

The stack uses a dual-action approach for 24/7 fat burning. Superhuman Burn ignites thermogenesis during workouts with 7 patented ingredients including MitoBurn® (which converts white fat to brown fat) and CaloriBurn GP® (which activates brown adipose tissue for 400% higher metabolic rate). Burn2O keeps your metabolism elevated even on rest days through the world's first liquid combination of MitoBurn®, CaloriBurn®, L-Carnitine, and GBB. Together, they create a synergistic fat-burning routine that targets stubborn fat from every angle.
Most fat burners only work during workouts OR throughout the day—never both. This stack covers all angles with 7 patented ingredients (vs generic compounds), liquid + powder delivery for maximum absorption, and clinical doses with published human studies. You'll literally feel it working within minutes thanks to GBB's thermogenic "sweat effect," while MitoBurn® provides "exercise in a bottle" benefits even on rest days. Plus, Burn2O is caffeine-free for ultimate flexibility.
You get both products: Superhuman Burn (21 servings of 2-in-1 fat-burning pre-workout) and Burn2O (31 servings of caffeine-free liquid thermogenic shots). Plus, subscribers get a free welcome kit worth $57.41 including premium shaker bottle, protein samples, and 60-day creatine supply.
Absolutely. You'll feel the thermogenic effects within 15-30 minutes. GBB creates an intense "sweat effect" that users describe as turning your body into a "walking fat-burning sauna." CaloriBurn GP® activates brown fat within 30 minutes, raising your metabolic rate by 400%. Unlike other fat burners where you're guessing if they work, you'll literally feel the heat and see the sweat.
Yes, it's completely safe. All ingredients are GRAS (Generally Regarded as Safe) and banned substance-free. The main "side effect" is increased sweating from the thermogenic effects—which is actually a sign it's working. Some people experience sediment in Superhuman Burn, which is normal due to hydrophilic ingredients. We could make them dissolve completely, but that would require adding preservatives we refuse to use.
Yes! This is perfect for caffeine-sensitive individuals. Burn2O is completely stimulant-free, so you can take it anytime without jitters or sleep disruption. For Superhuman Burn, start with half a scoop to assess tolerance, as it contains our SXT™ Energy System designed for sustained energy without crashes.
You'll feel the thermogenic effects immediately (15-30 minutes), but visible fat loss results typically show within 2-4 weeks of consistent use. The thermogenic effect duration varies by individual, but exercise itself elevates metabolism for up to 38 hours—and this stack intensifies and complements that effect.
Absolutely. Since Burn2O is caffeine-free, it stacks perfectly with other pre-workouts, protein powders, or any supplements you're already taking. You don't need separate NO supplements since Superhuman Burn contains citrulline for enhanced blood flow and performance.
FREE shipping on all subscription orders to the US. Standard orders ship within 1-2 business days. Domestic delivery typically takes 3-5 business days. International shipping available with rates calculated at checkout. All orders are tracked and you'll receive confirmation once shipped.
365-DAY MONEY-BACK GUARANTEE

We're so confident the Stubborn Fat Loss Stack will deliver results that we offer a full year to try it risk-free. Here's how it works:

✅ Full 365 days to try the products
✅ Keep any free welcome gifts regardless
✅ No questions asked refund process
✅ Full refund of purchase price
✅ Simply contact our customer service team

To request a refund: Email our support team with your order number. We'll process your refund within 3-5 business days, no hassle required. You don't even need to return the products.

TRUSTED CUSTOMER REVIEWS

4.8/5
Fat Burning
4.8
Energy & Focus
4.7
Metabolic Boost
4.9
Workout Performance
4.8
Taste
4.6
*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.
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