🟢 95/100

This product looks safe

  • Vitamin B3: 40mg is 1.1× the Tolerable Upper Intake Level (35mg)
  • 62% of ingredients have research evidence
C Label Compliance Grade

Product Label

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Safety Alerts

⚠️ Vitamin B3: 40mg is 1.1× the Tolerable Upper Intake Level (35mg)

Label Data

5 Gram(s) Serving Size
30 Servings
Other Combinations Product Type
62% Evidence Coverage

Supplement Facts — Evidence Check

40 mg (400% DV)
⚠️ Exceeds Tolerable Upper Intake Level by 1.1× (UL: 35 mg) 📚 193 studies (Tier A: 5, B: 63)
RDA 14mg This product: 40mg UL 35mg
6 mg (300% DV)
📊 4.6× RDA — above typical dose (UL: 100 mg) 📚 113 studies (Tier A: 3, B: 35)
RDA 1.3mg This product: 6mg UL 100mg
1000 mcg (16666% DV)
📊 416.7× RDA — above typical dose 📚 138 studies (Tier A: 1, B: 44)
RDA 0.0024mg This product: 1.0mg
100 mg (25% DV)
📊 Market median: 4002.0mg (1 products) 📚 20 studies (Tier A: 0, B: 2)
This product: 100mg
15 mg (100% DV)
✅ 1.4× RDA — within safe limits 📚 258 studies (Tier A: 6, B: 134)
RDA 11mg This product: 15mg UL 40mg
5 mg
📊 Market median: 3.0mg (58 products) 📚 2 studies — no high-quality reviews
This product: 5mg UL 20mg
Extreme Pre-Workout & Testosterone Boosting Blend
6500 mg
Ludicrous Blend
950 mg

Other Ingredients

Citric Acid Natural & Artificial Flavors Sucralose Calcium Silicate Silicon Dioxide Titanium Dioxide Mica FD&C Blue 2 Lake FD&C Red 40 Lake FD&C Yellow 6 Lake Gum

Label Claims — Verification

All Other
Structure/Function
All Other (97% of products) Structure/Function (86% of products) Nutrient (36% of products)

Target Groups

Adult (18 - 50 Years) Women (not pregnant or lactating)

Product Information

📋 Directions for Use

New user warning: This product is not intended for all users. New users should try 1/2 scoop in 8 oz. of water first to determine tolerance levels. Consume 15 minutes prior to exercise. Do not consume within 4 hours prior to bedtime. Do not take any other products that contain caffeine or any other stimulants while taking JOKER.

Directions: This pre-workout is only intended for serious users. Mix one (1) scoop (10g) in 8 ounces of water to activate JOKER mode. 1 scoop recommended dosage for JOKER mode

⚠️ Warnings & Precautions

Tamper resistant: Do not use if safety seal under cap is broken or missing.

New user warning: This product is not intended for all users. Do not consume within 4 hours prior to bedtime. Do not take any other products that contain caffeine or any other stimulants while taking JOKER. Warning: Make sure to read all warnings and take only as directed.

Not for use by individuals under the age of 18 years.

Do not use if pregnant or nursing.

Consult with a physician or licensed qualified health care professional before using this product if you have or have a family history of heart disease, thyroid disease, diabetes, high blood pressure, depression or other psychiatric condition, glaucoma, difficulty urinating, prostate enlargement or seizures disorder. Do not exceed recommended serving. Exceeding recommended serving may cause adverse health effects. Discontinue use and call a physician or license qualified health care professional immediately if you experience rapid heartbeat, dizziness, headache, shortness of breath or other similar symptoms. Individuals who are sensitive to the effects of caffeine or have a medical condition should consult a licensed health care professional before consuming this product. Warning: JOKER is intended for advanced supplement users only! Do not exceed one scoop prior to exercise under any circumstances.

Warning! Read entire label before use This is an extremely powerful formula intended for use by advanced athletes seeking the most intensely productive workouts possible Do not exceed recommended dosage

🧪 Formulation Notes

This is an extremely powerful formula intended for use by advanced athletes seeking the most intensely productive workouts possible

Joker Extreme Pre-Workout with test booster

Additional Information

Store at room temperature and avoid excessive heat.

Facebook/terrorlabz Instagram@terrorlabz

Beyond evil, there is insanity... Beyond insanity, there is JOKER

Made in USA

Whatever doesn't kill you, simply makes you stranger

Product Details

UPC / SKU 7 42880 88528 4
DSLD Entry Date 2024-03-22
Product Type Other Combinations
Form Powder
Brand Terror Labz
DSLD ID 304368
Data Updated 2026-04-11

Research Evidence

241 Research Sources
55 Avg Quality Score
113 Meta Analysis
75 Systematic Review
32 Rct
11 Clinical Trial
3 Other
3 Regulatory Source
1 Cochrane Review
1 Narrative Review
1 Openfda Safety
A Niacin for primary and secondary prevention of cardiovascular events
Meta Analysis The Cochrane database of systematic reviews 2017
A Use of high potency statins and rates of admission for acute kidney injury: multicenter, retrospective observational analysis of administrative databases
Meta Analysis BMJ (Clinical research ed.) 2013
A Effect on cardiovascular risk of high density lipoprotein targeted drug treatments niacin, fibrates, and CETP inhibitors: meta-analysis of randomised controlled trials including 117,411 patients
Meta Analysis BMJ (Clinical research ed.) 2014
A A terminal metabolite of niacin promotes vascular inflammation and contributes to cardiovascular disease risk
Meta Analysis Nature medicine 2024
A Meta-analysis and imputation refines the association of 15q25 with smoking quantity
Meta Analysis Nature genetics 2010
A Genome-wide meta-analyses identify multiple loci associated with smoking behavior
Meta Analysis Nature genetics 2010
A Antidepressants for smoking cessation
Meta Analysis The Cochrane database of systematic reviews 2014
A Topical azelaic acid, salicylic acid, nicotinamide, sulphur, zinc and fruit acid (alpha-hydroxy acid) for acne
Meta Analysis The Cochrane database of systematic reviews 2020
B Assessment of the Role of Niacin in Managing Cardiovascular Disease Outcomes: A Systematic Review and Meta-analysis
Meta Analysis JAMA network open 2019
B Association Between Lowering LDL-C and Cardiovascular Risk Reduction Among Different Therapeutic Interventions: A Systematic Review and Meta-analysis
Meta Analysis JAMA 2016
View all evidence for Niacin →

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