🟢 86/100

This product is generally safe

  • Vitamin B3: 60mg is 1.7× the Tolerable Upper Intake Level (35mg)
  • Contains proprietary blend — exact ingredient amounts not disclosed
  • 60% of ingredients have research evidence
C Label Compliance Grade

Product Label

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Safety Alerts

⚠️ Vitamin B3: 60mg is 1.7× the Tolerable Upper Intake Level (35mg)
ℹ️ Contains proprietary blend — exact ingredient amounts not disclosed

Label Data

8.5 Gram(s) Serving Size
30 Servings
Other Combinations Product Type
60% Evidence Coverage

Supplement Facts — Evidence Check

Vitamin C
250 mg (416% DV)
60 mg (200% DV)
⚠️ Exceeds Tolerable Upper Intake Level by 1.7× (UL: 35 mg) 📚 193 studies (Tier A: 5, B: 63)
RDA 14mg This product: 60mg UL 35mg
1 mg (300% DV)
✅ Within RDA (0.8× RDA of 1.3 mg) 📚 113 studies (Tier A: 3, B: 35)
RDA 1.3mg This product: 1mg UL 100mg
50 mcg (833% DV)
📊 20.8× RDA — above typical dose 📚 138 studies (Tier A: 1, B: 44)
RDA 0.0024mg This product: 0.05mg
4 Gram(s)
📊 Market median: 2000.0mg (275 products)
Median 2000.0mg This product: 4mg
4 Gram(s)
📊 Market median: 1500.0mg (104 products) 📚 21 studies (Tier A: 0, B: 2)
This product: 4mg
📊 Market median: 5.0mg (298 products) 📚 701 studies (Tier A: 5, B: 123)
This product: 2mg
📊 Market median: 500.0mg (143 products)
This product: 1mg
1000 mg
📊 Market median: 500.0mg (180 products) 📚 5 studies (Tier A: 0, B: 1)
This product: 1000mg
Proprietary Blend
806 mg

Other Ingredients

Natural & Artificial flavors Malic Acid Sucralose Citric Acid Acesulfame Potassium Silicon Dioxide

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) Women (not pregnant or lactating)

Product Information

📋 Directions for Use

Old Jack optimal performance usage: As a dietary supplement, take one (1) scoop with 8-12oz of water. New users may wish to assess tolerance with 1/2 scoop. Do not exceed one scoop in a 24-hour period.

⚠️ Warnings & Precautions

Warning: For use by healthy adults only, not recommended for persons under the age of 18.

Do not use if you are pregnant or nursing.

Individuals should not consume other caffeinated products in conjunction with this product. Seek advice from a healthcare professional if you have any pre-existing medical condition to ensure it is safe to take this product. In case of accidental overdose contact a poison control center immediately. Exceeding recommended serving will not improve results and may cause serious adverse health effects. Discontinue use and contact a licensed healthcare professional immediately if you experience an unusually rapid heartbeat, dizziness, sever headache, or shortness of breath.

Avoid alcohol and prescription stimulants while taking this product.

Keep out of reach of children.

🧪 Formulation Notes

Formulated with key ingredients

Preworkout catalyst Promotes muscle growth & recovery Enhanced muscular endurance Explosive energy & focus

Additional Information

Full spectrum dosing 17 grams per serving

Product Details

UPC / SKU 6 80175 74312 6
DSLD Entry Date 2021-05-22
Product Type Other Combinations
Form Powder
DSLD ID 247768
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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