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Ester-C Effervescent 1000 mg Natural Orange Flavor

product on market Powder Solgar 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 supplement provides Vitamin C and Thiamine, which are supported by strong evidence for immune function and energy metabolism. Vitamin A is also included to support vision and skin health. Due to the low evidence coverage of 0.5%, the specific synergistic effects of this formulation remain limited.

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
21
Servings
Other Combinations
Product Type
50%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Calories
25 Calorie(s)
Total Carbohydrates
7 Gram(s) (2% DV)
Vitamin A
800 IU (16% DV)
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)
100 mg (10% DV)
Within RDA (0.1× RDA) 13 studies (A:0, B:3)
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)
Sodium
40 mg (2% DV)
Potassium
400 mg (11% DV)
Antioxidant Health Proprietary Blend
58 mg

Other Ingredients

Cane Sugar Citric Acid natural Orange flavor Silica
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Once daily

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

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

Take once a day

Warnings & Precautions

If you are pregnant, nursing, taking any medications or have any medical condition, please consult your healthcare practitioner before taking any dietary supplement.

Discontinue use and consult your healthcare practitioner 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 damaged.

Formulation Notes

The Ester-C difference: 24-hour immune support Absorbs into your system and stays there

Patented vitamin C formula

Taken once a day, Ester-C has your immune health covered. It supports circulation, is beneficial to joints and connective tissues and forms the basis for healthy skin. As an antioxidant, Ester-C helps neutralize free radicals and reduce the premature aging of cells.

Along with essential vitamins, such as B06 and B-12 to support energy metabolism and vital electrolytes to aid in metabolic hydration, Ester-C Effervescent Formula has got you covered.

Ester-C Effervescent Vitamin C packets offer 24-hour immune support in a delicious, natural orange flavored formula.

Patented Ester-C increases levels of Vitamin C in the body-getting into white blood cells, an important part of your immune system. And, because Ester-C absorbs into your system and stays there... you get 24-hour immune support and potent antioxidant activity in a once daily 1,000 mg dose.

Free of: Gluten, wheat, dairy, soy, yeast, artificial flavor, artificial sweetener and preservatives.

Solgar's KOF-K certification #K-1250

B Vitamins to support energy metabolism

No artificial sweeteners Gluten, wheat & dairy free

K Parve

Additional Information

The better vitamin C Solgar Since 1947

Now more than ever, trust your immune health to Ester-C.

Store at room temperature.

K Parve

Metadata

Product Details

UPC / SKU0 33984 52603 7
DSLD Entry Date2020-06-24
Product TypeOther Combinations
FormPowder
BrandSolgar
DSLD ID228414
Data Updated2026-04-11
Research

Research Evidence

337
Research Sources
54
Avg Quality
161
Meta Analysis
68
Systematic Review
51
Rct
48
Clinical Trial
2
Other
2
Regulatory Source
1
Narrative Review
1
Cochrane Review
1
Guideline
1
Openfda Safety
A Vitamin A supplementation for preventing morbidity and mortality in children from six months to five years of age
Meta Analysis The Cochrane database of systematic reviews 2017 PubMed DOI
A Vitamin A supplementation for the prevention of morbidity and mortality in infants six months of age or less
Meta Analysis The Cochrane database of systematic reviews 2011 PubMed DOI
A Vitamin A supplementation for reducing the risk of mother-to-child transmission of HIV infection
Meta Analysis The Cochrane database of systematic reviews 2011 PubMed DOI
A Vitamin A supplements for preventing mortality, illness, and blindness in children aged under 5: systematic review and meta-analysis
Meta Analysis BMJ (Clinical research ed.) 2011 PubMed DOI
A Fortification of staple foods with vitamin A for vitamin A deficiency
Systematic Review The Cochrane database of systematic reviews 2019 PubMed DOI
A Vitamin A supplementation for the prevention of morbidity and mortality in infants one to six months of age
Narrative Review The Cochrane database of systematic reviews 2016 PubMed DOI
A Vitamin A and fish oils for preventing the progression of retinitis pigmentosa
Meta Analysis The Cochrane database of systematic reviews 2020 PubMed DOI
A Exercise training-induced changes in exerkine concentrations may be relevant to the metabolic control of type 2 diabetes mellitus patients: A systematic review and meta-analysis of randomized controlled trials
Meta Analysis Journal of sport and health science 2023 PubMed DOI
A Food fortification with multiple micronutrients: impact on health outcomes in general population
Meta Analysis The Cochrane database of systematic reviews 2019 PubMed DOI
A Oral vitamin A supplements to prevent acute upper respiratory tract infections in children up to seven years of age
Meta Analysis The Cochrane database of systematic reviews 2024 PubMed DOI
View all evidence for Vitamin A →
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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.