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Ester-C Effervescent 1000 mg Natural Orange Flavor

product on market Powder NatureSmart Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 50% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

This product provides Vitamin C and Thiamine, which are essential for immune function and energy metabolism. Research provides strong evidence for the role of these nutrients in maintaining overall health. The formulation also contains carbohydrates and sugars as part of the effervescent delivery system.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

Label for Ester-C Effervescent 1000 mg Natural Orange Flavor
Open Full PDF View on NIH DSLD →
Details

Label Data

10 Gram(s)
Serving Size
Other Combinations
Product Type
50%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Calories
25 Calorie(s)
Total Carbohydrates
6 Gram(s) (2% DV)
Sugar
5 Gram(s)
Vitamin C
1026 mg (1710% DV)
0.38 mg (25% DV)
Within RDA (0.3× RDA) 76 studies (A:0, B:33)
0.43 mg (25% DV)
Within RDA (0.3× RDA) 13 studies (A:0, B:1)
5 mg (25% DV)
Within RDA (0.4× RDA) 196 studies (A:5, B:63)
10 mg (500% DV)
7.7× RDA — above typical dose (UL: 100 mg) 114 studies (A:3, B:35)
12.5 mcg (3% DV)
Market median: 667.0mg (446 products) 226 studies (A:10, B:105)
25 mcg (417% DV)
10.4× RDA — above typical dose 139 studies (A:1, B:44)
2.5 mg (25% DV)
Within RDA (0.5× RDA) 2 studies — no high-quality reviews
Calcium
150 mg (15% DV)
60 mg (15% DV)
Within RDA (0.1× RDA) 316 studies (A:8, B:159)
2 mg (13% DV)
Within RDA (0.2× RDA) 263 studies (A:6, B:134)
0.5 mg (25% DV)
Within RDA (0.2× RDA) 9 studies — no high-quality reviews
5 mcg (4% DV)
Within RDA (0.1× RDA) 199 studies (A:1, B:55)
93 mg (3% DV)
Market median: 4002.0mg (1 products) 21 studies (A:0, B:2)
Sodium
100 mg (4% DV)
Potassium
280 mg (8% DV)
Antioxidant Health Proprietary Blend
58 mg

Other Ingredients

Fructose Maltodextrin Malic Acid Citric Acid Contains Less Than 2% of
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

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!

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

Non-GMO. No Gluten, no Wheat, no Milk, no Lactose, no Artificial Flavor, no Artificial Sweetener, no Soy, no Yeast, no Fish.

Suitable for Vegetarians

B Vitamins to support energy

Plus electrolytes

- 100% Vegetarian

- Non-GMO - No artificial sweeteners

Additional Information

Call toll free 1-866-417-0739 with questions or comments Mon.-Sat., 9am-7pm EST.

Prod. No. 68480 B58880 00A

Made in the USA with select ingredients from around the world

Store at room temperature.

Patented immune health formula

Clinically studied to last longer than regular Vitamin C 24 Hour immune support

Easy pour packet

Metadata

Product Details

UPC / SKU0 25077 74184 7
DSLD Entry Date2016-12-23
Product TypeOther Combinations
FormPowder
BrandNatureSmart
DSLD ID68748
Data Updated2026-04-11
Research

Research Evidence

371
Research Sources
54
Avg Quality
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 PubMed DOI
A Vitamin C supplementation for the primary prevention of cardiovascular disease
Systematic Review The Cochrane database of systematic reviews 2017 PubMed DOI
A Vitamin C for preventing and treating the common cold
Meta Analysis The Cochrane database of systematic reviews 2013 PubMed DOI
A Vitamin C for preventing and treating pneumonia
Meta Analysis The Cochrane database of systematic reviews 2013 PubMed DOI
A Vitamin E supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015 PubMed DOI
A Vitamin C supplementation for prevention and treatment of pneumonia
Meta Analysis The Cochrane database of systematic reviews 2020 PubMed DOI
A Vitamin C supplementation for prevention and treatment of pneumonia
Systematic Review The Cochrane database of systematic reviews 2021 PubMed DOI
A Nutritional interventions for preventing and treating pressure ulcers
Meta Analysis The Cochrane database of systematic reviews 2024 PubMed DOI
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 PubMed DOI
A Circulating vitamin C concentration and risk of cancers: a Mendelian randomization study
Meta Analysis BMC medicine 2021 PubMed DOI
View all evidence for Vitamin C →
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.