🟢 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

10 Gram(s) Serving Size
21 Servings
Other Combinations Product Type
53% Evidence Coverage

Supplement Facts — Evidence Check

Calories
20 Calorie(s)
Total Carbohydrates
5 Gram(s) (2% DV)
Vitamin C
1026 mg (1710% DV)
0.38 mg (25% DV)
✅ Within RDA (0.3× RDA of 1.2 mg) 📚 76 studies (Tier A: 0, B: 33)
RDA 1.2mg This product: 0.38mg
0.43 mg (25% DV)
✅ Within RDA (0.3× RDA of 1.3 mg) 📚 12 studies (Tier A: 0, B: 1)
RDA 1.3mg This product: 0.43mg
5 mg (25% DV)
✅ Within RDA (0.4× RDA of 14 mg) 📚 193 studies (Tier A: 5, B: 63)
RDA 14mg This product: 5mg UL 35mg
10 mg (500% DV)
📊 7.7× RDA — above typical dose (UL: 100 mg) 📚 113 studies (Tier A: 3, B: 35)
RDA 1.3mg This product: 10mg UL 100mg
12.5 mcg (3% DV)
📊 Market median: 667.0mg (446 products) 📚 225 studies (Tier A: 10, B: 105)
RDA 0.4mg This product: 0.0125mg UL 1.0mg
25 mcg (417% DV)
📊 10.4× RDA — above typical dose 📚 138 studies (Tier A: 1, B: 44)
RDA 0.0024mg This product: 0.025mg
2.5 mg (25% DV)
✅ Within RDA (0.5× RDA of 5 mg) 📚 1 studies — no high-quality reviews
RDA 5mg This product: 2.5mg
Calcium
150 mg (15% DV)
150 mg (15% DV)
✅ Within RDA (0.2× RDA of 700 mg) 📚 12 studies (Tier A: 0, B: 3)
RDA 700mg This product: 150mg UL 4000mg
60 mg (15% DV)
📊 Market median: 4002.0mg (1 products) 📚 20 studies (Tier A: 0, B: 2)
This product: 60mg
2 mg (13% DV)
✅ Within RDA (0.2× RDA of 11 mg) 📚 258 studies (Tier A: 6, B: 134)
RDA 11mg This product: 2mg UL 40mg
0.5 mg (25% DV)
✅ Within RDA (0.2× RDA of 2.3 mg) 📚 8 studies — no high-quality reviews
RDA 2.3mg This product: 0.5mg UL 11mg
5 mcg (4% DV)
✅ Within RDA (0.1× RDA of 0.035 mg) 📚 197 studies (Tier A: 1, B: 55)
RDA 0.035mg This product: 0.005mg
Sodium
55 mg (2% DV)
Potassium
280 mg (8% DV)
Antioxidant Health Proprietary Blend
45 mg

Other Ingredients

Fructose Malic Acid Citric Acid natural Lemon Lime flavor Silica Vegetable Cellulose

Label Claims — Verification

Nutrient
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 Dairy Free

Product Information

📋 Directions for Use

Directions: For adults, pour packet into 4-6 fl. oz. of water once daily. Stir or shake.

Take once a day!

Once a day is all you need

Just take one packet daily with 4-6 fl. oz. of water and you are good to go!

Taken once a day, Ester-C has your immune health covered.

⚠️ Warnings & Precautions

Warning: If you are pregnant, nursing, taking any medications or have any medical condition, consult your doctor before use.

Discontinue use and consult your doctor if any adverse reactions occur.

Not intended for use by persons under the age of 18. Keep out of reach of children.

Do not use if packet is torn or open.

🧪 Formulation Notes

Patented Vitamin C formula B vitamins to support energy metabolism

100% vegetarian

Non-GMO No artificial sweeteners

Along with essential vitamins, such as B-6 and B-12 to support energy metabolism and vital electrolytes to aid in metabolic hydration, Ester-C Effervescent Formula has got you covered.

No gluten, no yeast, no wheat, no milk or milk derivatives, no lactose, no soy, no egg, no grapefruit, no artificial sweetener or flavor.

Suitable for vegetarians.

Non-GMO.

Additional Information

Product No. 51267 B58878 01C GAE

Plus electrolytes 24-hour immune support

Natural lemon lime flavor packets

It supports circulation, is beneficial to joints and connective tissues, helps fight the premature aging of cells, and forms the basis for healthy skin.

Store at room temperature.

Product Details

UPC / SKU 0 76630 51267 1
DSLD Entry Date 2018-03-23
Product Type Other Combinations
Form Powder
DSLD ID 83267
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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