🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 56% of ingredients have research evidence
A Label Compliance Grade

Product Label

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Label Data

7.2 Gram(s) Serving Size
20 Servings
Other Combinations Product Type
56% Evidence Coverage

Supplement Facts — Evidence Check

2500 mg
📊 Market median: 2000.0mg (275 products)
Median 2000.0mg This product: 2500mg
1600 mg
📊 Market median: 1500.0mg (104 products) 📚 21 studies (Tier A: 0, B: 2)
This product: 1600mg
500 mg
📊 Market median: 500.0mg (223 products) 📚 22 studies (Tier A: 0, B: 1)
This product: 500mg
ViNitrox
250 mg
📊 Market median: 180.0mg (239 products) 📚 43 studies (Tier A: 1, B: 19)
This product: 175mg UL 400mg
125 mg
✅ Within RDA (0.2× RDA of 550 mg) 📚 36 studies (Tier A: 1, B: 7)
RDA 550mg This product: 125mg UL 3500mg
ElevATP
75 mg
📊 Market median: 180.0mg (239 products) 📚 43 studies (Tier A: 1, B: 19)
This product: 37.5mg UL 400mg
📊 Market median: 0.15mg (41 products)
Median 0.15mg This product: 10mg

Other Ingredients

Natural and Artificial flavor Citric Acid Malic Acid Silicon Dioxide Sucralose Acesulfame Potassium

Label Claims — Verification

All Other
Structure/Function
All Other (97% of products) Structure/Function (91% of products) Nutrient (29% of products) No Claim (2% of products)

Target Groups

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

Product Information

📋 Directions for Use

Directions: Mix 2 scoops with 8-12 ounces of water and consume approximately 15-30 minutes prior to your workout. To assess tolerance, new users may want to start with 1 scoop (1/2 scoop).

⚠️ Warnings & Precautions

Warning: This product is only intended for use in healthy adults 18 years of age or older.

Pregnant or nursing women should not use this product. Consult your healthcare provider before using this product, especially if you are taking any prescription, over the counter medication, dietary supplement product, or if you have any pre-existing medical condition including but not limited to: high or low blood pressure, cardiac arrhythmia, stroke, heart, liver, kidney or thyroid disease, seizure disorder, psychiatric disease, diabetes, difficulty urinating due to prostate enlargement or if you are taking a MAOI (Monoamine Oxidase Inhibitor) or any other medication. Do not use in combination with caffeine or any stimulants, including but not limited to, coffee, tea, soda, and other dietary supplements or medications.

Discontinue use and consult your health care professional if you experience adverse reaction to this product. Do not exceed recommended serving. Do not use in combination with caffeine or any stimulants, including but not limited to, coffee, tea, soda, and other dietary supplements or medications. Do not use under extreme conditions of heat, sleep deprivation, extreme cardiovascular exertion or dehydration. Do not combine with alcohol. Do not use if safety seal is broken or missing.

Keep out of reach of children.

🧪 Formulation Notes

Harness is a comprehensive pre-workout solution scientifically-formulated to increase your athletic performance. Key ingredients in Harness have been demonstrated to increase VO2 max, voluntary maximum contractile force, and total time to fatigue, while simultaneously decreasing feelings of fatigue.

Pre-workout Power Pump Focus Energy

Raspberry Sorbet Naturally & artificially flavored

Manufactured in a U.S. cGMP facility.

Additional Information

Made in USA

Old school dedication. Modern science.

Servings per container: 20 (40 scoops)

Product Details

UPC / SKU 6 72975 06312 2
DSLD Entry Date 2021-04-22
Product Type Other Combinations
Form Powder
DSLD ID 247820
Data Updated 2026-04-11

Research Evidence

12 Research Sources
45 Avg Quality Score
6 Rct
5 Clinical Trial
1 Meta Analysis
C Effect of food sources of nitrate, polyphenols, L-arginine and L-citrulline on endurance exercise performance: a systematic review and meta-analysis of randomised controlled trials
Meta Analysis Journal of the International Society of Sports Nutrition 2021
C Effects of L-Citrulline Supplementation on Endothelial Function and Blood Pressure in Hypertensive Postmenopausal Women.
Rct Nutrients
C Effects of Acute Citrulline Malate Supplementation on CrossFit® Exercise Performance: A Randomized, Double-Blind, Placebo-Controlled, Cross-Over Study.
Rct Nutrients
C Impact of L-Citrulline Supplementation and HIIT on Lipid Profile, Arterial Stiffness, and Fat Mass in Obese Adolescents with Metabolic-Dysfunction-Associated Fatty Liver Disease: A Randomized Clinical Trial.
Rct Nutrients
C Effect of L-Citrulline Supplementation on NAFLD in Adolescents With Obesity
Clinical Trial ClinicalTrials.gov 2021
C Effects of L-Citrulline or Citrulline-malate on Neuromuscular Performance in Resistance-trained Adults
Clinical Trial ClinicalTrials.gov 2022
C Acute effects of Nitrosigine® and citrulline malate on vasodilation in young adults.
Rct Journal of the International Society of Sports Nutrition
C Effects of Combined Versus Single Supplementation of Creatine, Beta-Alanine, and L-Citrulline During Short Sprint Interval Training on Basketball Players' Performance: A Double-Blind Randomized Placebo-Controlled Trial.
Rct International journal of sports physiology and performance
C Acute effects of combined supplementation of L-arginine and citrulline malate on aerobic, anaerobic, and CrossFit exercise performance.
Rct Scientific reports
C L-Citrulline in Peripheral Artery Disease
Clinical Trial ClinicalTrials.gov 2016
View all evidence for Citrulline →

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