🟢 90/100

This product looks safe

  • Contains proprietary blend — exact ingredient amounts not disclosed
  • 36% of ingredients have research evidence
A Label Compliance Grade

Product Label

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Safety Alerts

ℹ️ Contains proprietary blend — exact ingredient amounts not disclosed

Label Data

3 Tablet(s) Serving Size
30 Servings
Other Combinations Product Type
36% Evidence Coverage

Supplement Facts — Evidence Check

Vitamin C
120 mg (200% DV)
20 mg (100% DV)
✅ 1.4× RDA — within safe limits 📚 193 studies (Tier A: 5, B: 63)
RDA 14mg This product: 20mg UL 35mg
2 mg (100% DV)
✅ 1.5× RDA — within safe limits 📚 113 studies (Tier A: 3, B: 35)
RDA 1.3mg This product: 2mg UL 100mg
10 mg (100% DV)
✅ 2.0× RDA — within safe limits 📚 1 studies — no high-quality reviews
RDA 5mg This product: 10mg
📊 Market median: 250.0mg (337 products) 📚 125 studies (Tier A: 1, B: 41)
This product: 500mg
Yerba Mate extract
500 mg
📊 Market median: 495.0mg (70 products)
Median 495.0mg This product: 422mg
Proprietary Thermogenic Blend (Combination)
238.34 mg
Pre-Workout Xplosion Blend (Combination)
100 mg
Black Tea leaves extract
100 mg
📊 Market median: 650.0mg (87 products) 📚 1 studies — no high-quality reviews
This product: 100mg
📊 Market median: 500.0mg (861 products) 📚 60 studies (Tier A: 4, B: 13)
This product: 25mg
Dill Weed extract
5 mg
📊 Market median: 100.0mg (284 products) 📚 10 studies (Tier A: 0, B: 4)
This product: 1mg

Other Ingredients

Cellulose Dicalcium Phosphate Titanium Dioxide Vegetable Acetoglycerides natural Mint Flavor FD&C Red #40 Aluminum Lake FD&C Blue #1 Aluminum Lake Sucralose

Label Claims — Verification

All Other
Structure/Function
All Other (99% of products) Structure/Function (83% of products) Nutrient (54% of products)

Target Groups

Adult (18 - 50 Years)

Product Information

📋 Directions for Use

DIRECTIONS: As a dietary supplement, take three tablets daily one hour before exercise.

⚠️ Warnings & Precautions

KEEP OUT OF REACH OF CHILDREN.

WARNING: Consult your physician prior to using this product if you are pregnant, nursing, taking medication, or have a medical condition. Discontinue use two weeks prior to surgery.

🧪 Formulation Notes

Each serving combines 400 mg of caffeine with technnology-enhanced red and black pepper extracts and other superior components proven to provide calorie-burning effects. In fact, it’s been clinically shown to burn 12 times more calories and increase metabolism before, during and after exercise.^*

POWERED WITH 400 MG OF CAFFEINE AND MICRONIZED L-CARNITINE FOR EXPLOSIVE ENERGY*

Total Caffeine = 400 mg per serving

No Wheat, No Gluten, No Soy, No Dairy, Yeast Free.

Additional Information

Store in a cool, dry place.

30 TIME TO EXHAUSTION (MIN) 40

A study of 29 physically fit and healthy young adult male subjects averaging about 4 hours of exercise a week showed that individuals on the thermogenic blend found in Thermoburst Hardcore were able to increase performance measured by time to exhaustion while cycling at 80% V02max by nearly 5 minutes longer than when taking placebo.

ACTUAL SIZE

CLINICALLY PROVEN THERMOGENIC BLEND IMPROVES ENDURANCE AND ATHLETIC PERFORMANCE

CODE 107211 HLG

Conforms to USP <2091> for weight. Meets USP <2040> disintegration.

GNC GUARANTEE Use any GNC supplement for as little as 10 days. If you are not 100% completely satisfied, return the unused portion of the product with proof of purchase to your GNC store for a complete refund of your purchase price. No questions asked!

GNC QUALITY COMMITMENT GNC, the leader in the development and manufacture of dietary supplements, is committed to producing the highest quality products available. This commitment begins with quality designed supplement formulations. Every raw material that goes into a GNC supplement is guaranteed as to quality and potency. Each product is dated and then shipped immediately to our stores, so you can be sure you are purchasing the freshest supplements available. At GNC, we extend our quality commitment to you by offering our money-back guarantee.

HELPS YOU BURN 12 TIMES MORE CALORIES AFTER YOUR WORKOUT^*

PLACEBO

PUSH YOUR PERFORMANCE TO HIGHER LEVELS

(recycle) Please recycle this box.

Capsimax(TM)

CLINICALLY RESEARCHED

Product Details

DSLD Entry Date 2012-01-25
Product Type Other Combinations
Form Tablet or Pill
DSLD ID 4282
Data Updated 2026-04-11

Research Evidence

371 Research Sources
54 Avg Quality Score
148 Meta Analysis
82 Systematic Review
71 Rct
62 Clinical Trial
2 Regulatory Source
1 Cochrane Review
1 Narrative Review
1 Other
1 Openfda Safety
A Vitamin C supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015
A Vitamin C supplementation for the primary prevention of cardiovascular disease
Systematic Review The Cochrane database of systematic reviews 2017
A Vitamin C for preventing and treating the common cold
Meta Analysis The Cochrane database of systematic reviews 2013
A Vitamin C for preventing and treating pneumonia
Meta Analysis The Cochrane database of systematic reviews 2013
A Vitamin E supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015
A Vitamin C supplementation for prevention and treatment of pneumonia
Meta Analysis The Cochrane database of systematic reviews 2020
A Vitamin C supplementation for prevention and treatment of pneumonia
Systematic Review The Cochrane database of systematic reviews 2021
A Nutritional interventions for preventing and treating pressure ulcers
Meta Analysis The Cochrane database of systematic reviews 2024
A Does Vitamin C Supplementation Provide a Protective Effect in Periodontal Health? A Systematic Review and Meta-Analysis
Meta Analysis International journal of molecular sciences 2024
A Circulating vitamin C concentration and risk of cancers: a Mendelian randomization study
Meta Analysis BMC medicine 2021
View all evidence for Vitamin C →

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