Product Image

Buffered Vitamin C Powder

Life Extension
4.7
(1063 ratings)
Potassium 365 mg
Vitamin C 4000 mg
Product Image
Score96

A highly potent, fully buffered 4,000 mg Vitamin C powder designed for maximal support and gastric comfort.

How scoring works
Quantity:454 Gram(s)(84 servings)
Goals:
Immunity
Skin Health
Cardiovascular Support
Anti-Inflammatory Support
General Health
Heart Health
Bone Health
Vision Support

Score 96

A highly potent, fully buffered 4,000 mg Vitamin C powder designed for maximal support and gastric comfort.

How scoring works
$21.00($0.25 per serving)
Vitacost
$ 22.43
Pure Formulas
$ 21.00
iHerb
$ 21.00
Vitacost
$ 22.43
Report prices

Analysis

This product delivers a massive 4,000 mg dose of Vitamin C in each serving, neutralized by potassium and calcium carbonates. This buffering is crucial for those who find standard ascorbic acid too harsh on their digestive system.

The pure powder format is very flexible, allowing for customized dosing with no added sugars or artificial flavors. It also provides meaningful levels of potassium to support heart health and mineral balance.

Pros

  • Extremely high Vitamin C dose
  • Fully buffered and stomach-friendly
  • No added sugars or flavors
  • Excellent price per gram

Cons

  • Requires mixing in water
  • Unflavored taste may be bland
  • Very high dose may not be needed by everyone

Warnings

  • Consult a professional for high-dose use
  • Contains 365mg of potassium
  • Store in a dry place to prevent clumping

Nutrient quality

93 Highest impact

Fully buffered system ensures exceptional tolerance for high-dose ascorbic acid supplementation. Dosing is highly therapeutic for antioxidant and mineral support, though peak absorption may be limited in a single serving.

Ingredient transparency

100 Highest impact

Labeling is exceptionally clean and clear, identifying specific mineral sources and providing precise weights for all components. The powdered format offers high transparency regarding the purity of the active ingredients.

Customer satisfaction

93 Highest impact

Consistently strong ratings from over a thousand users indicate high satisfaction with the product's quality and digestive compatibility. Feedback highlights the ease of mixing and the lack of acidity as primary benefits.

Value for money

97 Highest impact

Provides exceptional value by offering a very large quantity of high-purity Vitamin C and mineral carbonates at a competitive price. The cost per gram of Vitamin C is lower than most encapsulated or flavored alternatives.

Report analysis

Goals

Impact
Highest effect
A+ Goal FitA Strength of SupportB- CoverageA+ Formula Quality

This fully buffered powder delivers an intensive 4000mg dose of Vitamin C along with Potassium, Magnesium, and Zinc to support immune health. The non-acidic mineral ascorbate system ensures maximum gastric comfort even at very high therapeutic dosages.

While highly potent, the 4000mg dosage significantly exceeds the body's peak intestinal absorption capacity in a single serving. The formula is exceptionally clean and transparent, focusing on meaningful mineral weights and high-purity active ingredients.

View goal →
Impact
Highest effect
A Goal FitA Strength of SupportB- CoverageA+ Formula Quality

High-dose vitamin C supports natural collagen synthesis and provides powerful antioxidant protection for the skin.

A buffered mineral system ensures that these high levels are well-tolerated while contributing to overall skin resilience.

View goal →
Impact
Highest effect
A Goal FitA+ Strength of SupportB- CoverageA+ Formula Quality

This buffered powder provides a significant 4000mg dose of vitamin C along with 365mg of potassium to support cardiovascular health and immune function. Vitamin C is a critical antioxidant for protecting blood vessels, while potassium is essential for maintaining healthy blood pressure and heart rhythm.

The formulation uses a variety of mineral carbonates to buffer the ascorbic acid, which improves gastric tolerance even at high doses. This customizable powder offers exceptional value for individuals seeking significant antioxidant and mineral support for their cardiovascular system.

View goal →
Impact
Highest effect
A Goal FitA Strength of SupportC CoverageA Formula Quality

Vitamin C is a potent antioxidant that supports the reduction of oxidative stress, which is a major driver of chronic inflammatory responses. Buffered mineral ascorbates like calcium, magnesium, and potassium provide high doses of the vitamin while maintaining a neutral pH for better tolerance.

The 4000 mg dosage provides a concentrated amount of active antioxidant quenching potential. A pure powder format allows for easy customization of intake without the use of standard tablet binders or synthetic excipients.

View goal →
Impact
Highest effect
A- Goal FitB+ Strength of SupportB- CoverageA+ Formula Quality

Vitamin C at 4000mg, buffered by mineral carbonates, provides a potent antioxidant dose designed for immune and collagen support. The inclusion of Calcium, Magnesium, and Potassium carbonates ensures the formula is gentle on the stomach despite the high acid content.

Ingredients like Zinc Gluconate add supportive immune benefits while assisting in the buffering process. This powder format appears well-aligned for those requiring high-dose Vitamin C without the common gastrointestinal side effects of unbuffered ascorbic acid.

View goal →
Impact
Highest effect
B+ Goal FitB+ Strength of SupportB CoverageA Formula Quality

Potassium and Vitamin C in high doses support blood pressure regulation and vascular integrity. Buffered mineral forms may contribute to better tolerance while providing significant mineral repletion.

Providing 365mg of potassium per serving offers meaningful support for sodium-potassium balance. The formula is logically constructed to provide electrolytes and antioxidant support without unnecessary padding.

View goal →

Ingredients

IngredientAmount per serving
Vitamin C (Ascorbic Acid)
4000 mg
Calcium (Calcium Carbonate)
145 mg
Magnesium (Magnesium Carbonate)
55 mg
Zinc (Zinc Gluconate)
2 mg
Potassium (Potassium Carbonate)
365 mg
Gluten Free Adults 18–50 Vegetarian
Report overview
A+ Active Ingredient Quality & BioavailabilityA- Dose, Safety & Label TransparencyA+ Value
This buffered vitamin C formula provides an effective dose of potassium in a highly bioavailable alkalizing form. It is an exceptionally affordable option for those seeking both immune and mineral support.
B+ Active Ingredient Quality & BioavailabilityB Dose, Safety & Label TransparencyA+ Value
This high-potency powder is fully buffered with a variety of minerals to ensure gastric comfort even at high doses. It is designed for those who require significant Vitamin C support and prefer a customizable powder format.
Report alternatives