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Buffered Vitamin C Powder

product on market Powder Life Extension Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 40% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

Vitamin C, zinc, and magnesium are supported by strong evidence for immune function and antioxidant support. Calcium and potassium contribute to electrolyte balance and bone health. Overall evidence coverage for this specific formulation is limited.

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

Label

Product Label

Label for Buffered Vitamin C Powder
Open Full PDF View on NIH DSLD →
Details

Label Data

5.4 Gram(s)
Serving Size
84
Servings
Other Combinations
Product Type
40%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Vitamin C
4000 mg (4444% DV)
Calcium
145 mg (11% DV)
55 mg (13% DV)
Within RDA (0.1× RDA) 316 studies (A:8, B:159)
2 mg (18% DV)
Within RDA (0.2× RDA) 263 studies (A:6, B:134)
Potassium
365 mg (8% DV)

Other Ingredients

None
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Read the entire label and follow the directions carefully prior to use. Directions: Mix one (1) teaspoon of BUFFERED VITAMIN C POWDER into a glass of water. Wait for the fizz to stop before consuming. The minerals buffer out the normally acidic vitamin C to make a pleasant tasting drink.

Warnings & Precautions

Caution: Consuming high doses of this highly potent product can initially cause diarrhea, especially when taken on an empty stomach. Take with meals starting off low and gradually increasing the dose.

Warnings: -Keep out of reach of children.

-Do not exceed recommended dose. -Do not purchase if outer seal is broken or damaged.

-When using nutritional supplements, please consult with your physician if you are undergoing treatment for a medical condition or if you are pregnant or lactating.

Formulation Notes

Vitamin C for Sensitive Stomachs

Gluten free Non-GMO LE Certified

Vegetarian

Additional Information

Scan for product info

To ensure product consistency store tightly closed in a cool, dry place.

Store tightly closed in a cool, dry place.

To report a serious adverse event or obtain product information, contact 1-866-280-2852

Density may vary from lot to lot.

Metadata

Product Details

UPC / SKU7 37870 08445 7
DSLD Entry Date2020-08-23
Product TypeOther Combinations
FormPowder
BrandLife Extension
DSLD ID231632
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.