🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 60% of ingredients have research evidence
A Label Compliance Grade

Product Label

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Label Data

1 Capsule(s) Serving Size
45 Servings
Vitamin Product Type
60% Evidence Coverage

Supplement Facts — Evidence Check

20 mg (125% DV)
✅ 1.4× RDA — within safe limits 📚 193 studies (Tier A: 5, B: 63)
RDA 14mg This product: 20mg UL 35mg
20 mg (1176% DV)
📊 15.4× RDA — above typical dose (UL: 100 mg) 📚 113 studies (Tier A: 3, B: 35)
RDA 1.3mg This product: 20mg UL 100mg
150 mcg (6250% DV)
📊 62.5× RDA — above typical dose 📚 138 studies (Tier A: 1, B: 44)
RDA 0.0024mg This product: 0.15mg
10 mcg (200% DV)
📊 Market median: 9.0mg (620 products) 📚 1 studies — no high-quality reviews
RDA 5mg This product: 0.01mg
Intensify Black Proprietary Blend
940 mg

Other Ingredients

Gelatin Microcrystalline Cellulose Magnesium Stearate Silicon Dioxide FD&C Red 3 Titanium Dioxide FD&C Yellow 6 FD&C Red 40 FD&C Blue 1

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) Gluten Free

Product Information

📋 Directions for Use

Suggested use: With 6-8 oz .of juice or water take 1 Intensify Black capsule 30 minutes prior to your morning meal, and 1 capsule 30 minutes prior to your afternoon meal. Caffeine content is 160 mg per capsule. To be used as part of a healthy lifestyle consisting of regular physical activity and a proper diet.

⚠️ Warnings & Precautions

Warning Keep out of reach of children. Not for use by those under the age of 18.

For use by healthy adults only. Do not exceed recommended serving.

Do not use if you are pregnant or nursing.

Do not use if allergic or contraindicated to aspirin.

Before consuming seek advice from a health are professional if you are unaware of your current health condition.

Contains caffeine. Do not consume caffeine from other sources, including but not limited to, coffee, tea, soda, and other dietary supplements or medications containing caffeine.

Do not consume caffeine from other sources, including but not limited to, coffee, tea, soda, and other dietary supplements or medications containing caffeine. Consult your physician prior to use if you are taking medication, including but not limited to MAOI inhibitors, antidepressants, aspirin, blood thinning medications, nonsteroidal anti-inflammatory drugs or products containing phylephrine, ephedrine, pseudoephedrine, or other stimulants.

Consult your physician prior to use if you have a medical condition, including but not limited to, heart, liver, kidney, or thyroid disease, psychiatric or epileptic disorders, difficulty urinating, diabetes, high or low blood pressure, cardiac arrhythmia, recurrent headaches, enlarged prostate or glaucoma.

Warning for California residents only: This product contains a chemical known in the state of California to cause birth defects or other reproductive harm. Do not use if you are prone to dehydration or exposed to excessive heat. Discontinue use 2 weeks prior surgery or if you experience rapid heart beat, dizziness, severe headache, shortness of breath, or upset stomach. Do not use if tamper resistant seal is broken.

Contains milk.

🧪 Formulation Notes

Energy Appetite control Diuretic Focus

Strong weight loss from xtreme synergy Intensify Black is an unparalleled fat burning thermogenic with a complete synergistic formula that combines the perfect ratio of diet components together for extraordinary results. The precision blend is designed to support intense fat burning, strong energy levels, effective appetite suppression, enhanced diuretic affects, and intense focus. Intensify Black's formulation provides a superior synergy of prime ingredients for greater overall efficacy.

Thermo with clinically studied ingredients C3G (Cyanidin-3-O-Glucosides): a clinically studied compound found naturally in sources such as blackberries, purple corn, black rice and black soybeans has been shown to support several health benefits.

TeaCrine: a patent-pending compound that works with the body's natural metabolic processes to support energy, increase mental focus, and improve motivation. Clinical research confirms TeaCrine's unique ability to enhance performance in one safe, non-habituating ingredient.

Green Tea: supports antioxidant function, helps to regulate insulin and blood sugar levels, combats mental fatigue, and is a mild stimulant that provides energy and mental alertness.

Huperzine A: a natural nootropic compound purified from toothed clubmoss that is advantageously known to enhance cognitive ability and function.

TeaCrine + QU995 + KSM-66 Ashwaganda + C36

Advance thermogenic for elite weight loss

Gluten free.

Additional Information

Control cravings Slim-tox complements intensify black because it offers nighttime support to aid with appetite control and sleep. Add on a body toning censor to embrace complete weight loss support. Control your cravings at night with Sim-Tox.

References: Sasaki R, et al (2007). Cyanidin 3-glucoside ameliorates hyperglycemia and insulin sensitivity due to downregulation of retinol binding protein 4 expression in diabetic mice. Biochem Pharmacol 74 (11), 1619-27 Pre-clinical trial: Hayward S, et al. (2014). Safety of TeaCrine, a non-habituating, naturally-occurring purine alkaloid over eight weeks of continuous use. University of Mary Hardin-Baylor Department of Exercise & Sports Science, Human Performance Lab. Habowski SM, et al. (2014). The effects of TeaCrine on subjective measures of cognitive function, psychometric and hemodynamic indices in healthy humans: a randomized doubled-blind crossover pilot trial. JISSN 11 (Suppl 1):49. Dulloo AG, et al. (1999). Efficacy of a green tea extract rich in catechin polyphenols and caffeine in increasing 24-h energy expenditure and fat oxidation in humans. Am J Clin Natr, 70:1040-5. Auvichayapat P, et al. (2008). Effectiveness of green tea on weight reduction in obese Thais: A randomized, controlled trial. Physiology & behavior, 93:486-491. Patocka J. (1998). Huperzine A- An interesting anticholinesterase compounds from the Chinese herbal medicine. Acta Medica; 41(4): 155-7 Wang R, et al. (2006). Progression studies of huperzine A, a natural cholinesterase inhibitor from Chinese herbal medicine. Acta Pharmacol Sin; 27(1):1-26.

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Body toning Censor's specialized body toning formula features krill oil, an omega 3-6-9 blend and tonalin CLA, and ideally complements Intensify Black to effectively target and tone those hard-to-lose "problem" areas. Focus on those pesky inches with Censor

Store in a cool dry place. Avoid excessive heat.

Consumer notice: Fitlife brands can only confirm product purity when our brands are purchased from authorized retailers, on gnc.com, or on ndsnutrition.com. For an approved list of retailers, go to ndsnurtrition.com.

Teacrine is a registered trademark and protected by patents pending, serial no. 61/903,362; under exclusive global distribution by Compound Solutions, Inc. QU995 is a trademark of Quercegen Pharmaceuticals. KSM-66 is a registered trademark of lxoreal Biomed, Inc. Suntheanine is a registered trademark of Taiyo International, Inc. BioPerine is a registered trademark and a patented product of Sabinsa Corp.

Product Details

UPC / SKU 8 11020 91043 5
DSLD Entry Date 2022-12-13
Product Type Vitamin
Form Capsule
Brand NDS
DSLD ID 277205
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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