Buffered Vitamin C Powder, 240 g
240 Powder
May be a fit for
- Adults seeking high-dose vitamin C without gastrointestinal discomfort
- Practitioners protocols requiring mineral-buffered ascorbate for sensitive patients
- Individuals supporting immune function who cannot tolerate acidic vitamin C forms
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Buffered Vitamin C Powder from Allergy Research Group delivers ascorbic acid in a mineral-buffered form, using calcium, magnesium, and potassium ascorbates, to reduce the gastrointestinal sensitivity that can accompany standard vitamin C supplementation. This 240g loose powder format supports immune function, antioxidant defense, and connective tissue integrity, and is particularly suited to individuals who require higher-dose vitamin C or have sensitive digestive systems.
Why It's Worth Considering: The mineral-buffered delivery neutralizes acidity without sacrificing potency, making it a practical option for those titrating therapeutic doses under practitioner guidance.
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Allergy Research Group · 240 gMake it part of your routine.
As a dietary supplement, 1 heaping teaspoon or more in 8 to 12 ounces of liquid between meals, or as directed by a healthcare practitioner.
Important cautions & interactions
This statement has not been evaluated by the U.S. Food and Drug administration. The product is not intended to diagnose, treat, cure, or prevent any disease.
Product details
Supplement facts & complete label
Serving Size:
½ Teaspoon (2.35 g)
Amount Per Serving:
Vitamin C (as Ascorbic Acid) ... 1.067 g
Calcium (as Calcium Carbonate) ... 202 mg
Magnesium (as Magnesium Carbonate) ... 107 mg
Potassium (as Potassium Carbonate) ... 45 mg
Other Ingredients:
Cellulose.
Other ingredients: Cellulose.
These nutrients are of the highest quality and purity obtainable, and do not contain preservatives, diluents, or artificial additives.
Label directions
As a dietary supplement, 1 heaping teaspoon or more in 8 to 12 ounces of liquid between meals, or as directed by a healthcare practitioner.
Label cautions
Variations in product color may occur.
This statement has not been evaluated by the U.S. Food and Drug administration. The product is not intended to diagnose, treat, cure, or prevent any disease.
Source: authorized supplier original manufacturer label · September 06, 2026. Formulas and labels can change. Check the packaging you receive.
Who it may suit
May be a fit for
- Adults seeking high-dose vitamin C without gastrointestinal discomfort
- Practitioners protocols requiring mineral-buffered ascorbate for sensitive patients
- Individuals supporting immune function who cannot tolerate acidic vitamin C forms
- Those maintaining antioxidant status needing flexible, titratable powder dosing
Considerations
- History of kidney stones (oxalate type) — use buffered form
- Hemochromatosis (iron overload — C enhances iron absorption)
- G6PD deficiency at very high IV doses
- Taking blood thinners at doses above 2g/day
Compatibility & interactions
Works Well With
Take Separately From
No significant interactions identified. Always consult your healthcare provider.
What to expect over time
Plasma Saturation
Blood levels reach therapeutic range
Immune Boost
Enhanced white blood cell function
Collagen Support
Improved skin elasticity and wound healing
Antioxidant Reserve
Reduced oxidative stress markers
Based on clinical research on vitamin C supplementation. Water-soluble — excess is excreted within hours.
Compare the options
Compare Vitamin C Forms
Which form delivers the most?
| Feature | Ascorbic Acid | Buffered (Ascorbate) | Liposomal | Ester-C |
|---|---|---|---|---|
| Bioavailability | Good (standard) | Good (gentler) | Excellent (2-3x) | Good |
| GI Tolerance | May cause acidity | Very gentle | Excellent | Gentle |
| Best For | Budget, general use | Sensitive stomachs | Maximum absorption | Sustained release |
| Price | $ | $ | $$$ | $$ |
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Coverage varies by product and brand.
190 product and brand ratings and mentions across 4 sources.
These are broader practitioner and research perspectives. They may discuss the brand or other products, rather than this exact formula.
Explore the source sentiment summary
Generally positive consensus on vitamin C for collagen, immunity, and synergistic nutrient absorption, with some skepticism around high-dose efficacy claims.
This summary includes broader brand discussion. Individual experiences are not evidence of product effectiveness.
A few useful answers.
Research & further reading
More category questions
How much vitamin C should I take daily?
For maintenance, 500-1000mg daily is sufficient. For immune support during illness, 2000-4000mg in divided doses. The body can only absorb ~200-500mg at once, so split large doses throughout the day. Liposomal forms bypass this limit with 2-3x better absorption.
Is liposomal vitamin C worth the extra cost?
For most people, standard ascorbic acid at 500-1000mg is sufficient. Liposomal vitamin C is worth the premium if you need higher therapeutic doses (2000mg+) without GI distress, or if you have absorption issues. Studies show liposomal C achieves 2-3x higher blood levels than standard forms.
Can I take too much vitamin C?
Vitamin C is water-soluble and excess is excreted in urine. The main risk of high doses (3000mg+) is GI distress (diarrhea, cramping) and increased oxalate production, which may contribute to kidney stones in susceptible individuals. The 'bowel tolerance' test — increasing dose until loose stools, then backing off — is a common practitioner approach.
Does vitamin C really help prevent colds?
Meta-analyses show regular vitamin C supplementation reduces cold duration by 8% in adults and 14% in children, and reduces severity. It does NOT prevent colds in most people, but it does in those under physical stress (athletes, military). Taking vitamin C after cold symptoms start has minimal benefit — daily prevention is key.
When is the best time to take vitamin C?
Take with food to reduce potential stomach acidity. Morning dosing is common since vitamin C may mildly increase alertness. If taking large doses (1000mg+), split into 2-3 doses throughout the day for better absorption and sustained blood levels.
Supplement information is provided for education and is not a substitute for personalized medical advice. Supplements are not intended to diagnose, treat, cure or prevent disease. Read the current product label before use.