🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 53% of ingredients have research evidence
A Label Compliance Grade

Product Label

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Label Data

5.56 Gram(s) Serving Size
30 Servings
Other Combinations Product Type
53% Evidence Coverage

Supplement Facts — Evidence Check

Calories
10 Calorie(s)
Total Carbohydrates
2 Gram(s) (1% DV)
Vitamin C
120 mg (133% DV)
20.1 mg (134% DV)
✅ 1.3× RDA — within safe limits 📚 177 studies (Tier A: 3, B: 90)
RDA 15mg This product: 20.1mg UL 1000mg
2 mg (167% DV)
✅ 1.7× RDA — within safe limits 📚 76 studies (Tier A: 0, B: 33)
RDA 1.2mg This product: 2mg
5 mg (385% DV)
📊 3.8× RDA — above typical dose 📚 12 studies (Tier A: 0, B: 1)
RDA 1.3mg This product: 5mg
10 mg (63% DV)
✅ Within RDA (0.7× RDA of 14 mg) 📚 193 studies (Tier A: 5, B: 63)
RDA 14mg This product: 10mg UL 35mg
5 mg (294% DV)
📊 3.8× RDA — above typical dose (UL: 100 mg) 📚 113 studies (Tier A: 3, B: 35)
RDA 1.3mg This product: 5mg UL 100mg
28 mg (560% DV)
📊 5.6× RDA — above typical dose 📚 1 studies — no high-quality reviews
RDA 5mg This product: 28mg
Calcium
50 mg (4% DV)
20 mg (2% DV)
📊 Market median: 99.0mg (503 products) 📚 12 studies (Tier A: 0, B: 3)
RDA 700mg This product: 20mg UL 4000mg
150 mg (36% DV)
📊 Market median: 4002.0mg (1 products) 📚 20 studies (Tier A: 0, B: 2)
This product: 150mg
83 mcg (237% DV)
✅ 2.4× RDA — within safe limits 📚 197 studies (Tier A: 1, B: 55)
RDA 0.035mg This product: 0.083mg
270 mg (12% DV)
📊 Market median: 4002.0mg (1 products) 📚 20 studies (Tier A: 0, B: 2)
This product: 270mg
Sodium
180 mg (8% DV)
Potassium
100 mg (2% DV)
Malic Acid
500 mg
500 mg
📊 Market median: 500.0mg (180 products) 📚 5 studies (Tier A: 0, B: 1)
This product: 500mg
📊 Market median: 420.0mg (227 products)
Median 420.0mg This product: 150mg

Other Ingredients

Citric Acid Natural Flavors Rebaudioside A

Label Claims — Verification

All Other
Structure/Function
All Other (99% of products) Structure/Function (83% of products) Nutrient (54% of products)

Target Groups

Vegetarian Adult (18 - 50 Years) Gluten Free

Product Information

📋 Directions for Use

Directions: Mix 1 packet into 8 fluid ounces of water 10-15 minutes before exercise and every 15 minutes when exercising or as directed by your healthcare practitioner.

⚠️ Warnings & Precautions

Caution: If pregnant or nursing, or taking medication, please consult your healthcare practitioner before use.

Keep out of the reach of children.

Tamper Evident: Do not use if package is torn or open.

Practitioner Exclusive

🧪 Formulation Notes

Staying properly hydrated is essential to the athlete, whose exercise endurance and performance can depend on both fluid balance and key electrolytes.

Hydrate with Endura, a naturally flavored hydration powder containing a well-designed electrolyte profile to help support hydration and replenish electrolytes lost during exercise.

Endura is formulated without artificial sweeteners or colors because we know what you put into body - and what you don't matters to you.

Formulated to help support fluid balance

When used as directed, delivers key electrolytes such as sodium and potassium to help replace those lost through sweating during exercise, activity, or hot weather conditions.

Helps support hydration during exercise. Maintaining sufficient hydration aids exercise performance and endurance.

When used as directed, supplies 100 mg potassium and 150 mg of L-alanyl-l-glutamine per serving to help support exercise performance.

Certified Gluten Free GFCO.org (Gluten-Free Certification Organization)

This product is non-GMO, gluten-free, and vegetarian.

Hydrate & replenish

Lemonade flavor with other natural flavors

No MSG

Additional Information

Certified Gluten Free GFCO.org (Gluten-Free Certification Organization)

Storage: Keep in a cool, dry place.

Please recycle

30 - 0.2 oz (5.56 g) packets

Product Details

UPC / SKU 7 55571 95050 5
DSLD Entry Date 2025-02-23
Product Type Other Combinations
Form Other (e.g. tea bag)
Brand Metagenics
DSLD ID 323352
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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