🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 38% of ingredients have research evidence
A Label Compliance Grade

Product Label

📸

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Label Data

2.7 Gram(s) Serving Size
75 Servings
Other Combinations Product Type
38% Evidence Coverage

Supplement Facts — Evidence Check

Calories
Total Carbohydrates
15 mg (4% DV)
📊 Market median: 4002.0mg (1 products) 📚 20 studies (Tier A: 0, B: 2)
This product: 15mg
70 mg (7% DV)
✅ Within RDA (0.1× RDA of 700 mg) 📚 12 studies (Tier A: 0, B: 3)
RDA 700mg This product: 70mg UL 4000mg
Sodium
20 mg (1% DV)
Potassium
55 mg (2% DV)
1.6 g
📊 Market median: 1500.0mg (104 products) 📚 21 studies (Tier A: 0, B: 2)
This product: 1600.0mg
L-Histidine
550 mg

Other Ingredients

Silicon Dioxide

Label Claims — Verification

Nutrient
All Other
Structure/Function
All Other (99% of products) Structure/Function (85% of products) Nutrient (54% of products) Approved Health (3% of products)

Target Groups

Adult (18 - 50 Years)

Product Information

📋 Directions for Use

DIRECTIONS: Add 1 scoop of Threshold(TM) to a glass or shaker cup filled with 6-8 oz. of cold water or your favorite beverage. Mix or shake thoroughly for 15-20 seconds or until powder is completely dissolved. SUGGESTED USE: Consume one serving first thing in the morning and a second serving approximately 30 minutes before your workout (or mid-afternoon on non-training days).

⚠️ Warnings & Precautions

KEEP OUT OF REACH OF CHILDREN.

CHECK WITH A QUALIFIED HEALTH CARE PROFESSIONAL BEFORE TAKING THIS PRODUCT IF YOU ARE PREGNANT OR NURSING A BABY, UNDER 18 YEARS OF AGE, HAVE ANY KNOWN OR SUSPECTED MEDICAL CONDITIONS, AND/OR IF YOU ARE TAKING ANY PRESCRIPTION OR OTC MEDICATIONS.

🧪 Formulation Notes

1.6G BETA ALANINE

Packed with Beta-Alanine, Histidine, and Phosphates our Threshold(TM) formula is designed to help boost your intramuscular buffering system so that you can train harder, longer.†

Additional Information

75 SERVINGS (3 arrows) 1,600 MG MUSCLE FATIGUE FIGHTER†

07-234-094

CarnoSyn(R) Carnosine Synthesizer

Nutritional uses of ß-alanine are licensed from Natural Alternatives International, Inc. under US Patents #5,965,596; 6,172,098 and 6,680,294.

THE BIGGER PICTURE OF MUSCLE STAMINA During high-intensity training, glucose and glycogen are broken down for energy. In the process, hydrogen ions (H+) are also produced within the muscles. H+ accumulation causes the muscles to become more acidic and ultimately leads to fatigue.

ON(TM)

(2 arrows) UNFLAVORED

STORE TIGHTLY-CLOSED CONTAINER IN A COOL, DRY PLACE.

Product Details

DSLD Entry Date 2013-02-25
Product Type Other Combinations
Form Powder
DSLD ID 17572
Data Updated 2026-04-11

Research Evidence

849 Research Sources
56 Avg Quality Score
450 Meta Analysis
152 Rct
137 Systematic Review
73 Clinical Trial
11 Regulatory Source
7 Other
7 Guideline
3 Openfda Safety
2 Cochrane Review
2 Observational
A Phosphate binders for preventing and treating chronic kidney disease-mineral and bone disorder (CKD-MBD)
Meta Analysis The Cochrane database of systematic reviews 2018
A Calcium supplementation (other than for preventing or treating hypertension) for improving pregnancy and infant outcomes
Meta Analysis The Cochrane database of systematic reviews 2024
A Calcium supplementation (other than for preventing or treating hypertension) for improving pregnancy and infant outcomes
Meta Analysis The Cochrane database of systematic reviews 2015
A Vitamin and mineral supplementation for maintaining cognitive function in cognitively healthy people in mid and late life
Meta Analysis The Cochrane database of systematic reviews 2018
A Calcium supplementation during pregnancy for preventing hypertensive disorders and related problems
Meta Analysis The Cochrane database of systematic reviews 2025
A Dietary calcium supplementation for preventing colorectal cancer and adenomatous polyps
Systematic Review The Cochrane database of systematic reviews 2008
A Calcium and vitamin D for increasing bone mineral density in premenopausal women
Systematic Review The Cochrane database of systematic reviews 2023
A Dietary sodium, sodium-to-potassium ratio, and risk of stroke: A systematic review and nonlinear dose-response meta-analysis
Meta Analysis Clinical nutrition (Edinburgh, Scotland) 2019
A The association between circulating magnesium and clinically relevant outcomes in patients with chronic kidney disease: A systematic review and meta-analysis
Meta Analysis Clinical nutrition (Edinburgh, Scotland) 2021
A Calcium channel blockers versus other classes of drugs for hypertension
Systematic Review The Cochrane database of systematic reviews 2021
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