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Buffered Vitamin C Powder

Life Extension

4.7
(1003 ratings)
Vitamin C 4000 mg
Potassium 365 mg
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Score 78.0

A high-dose, buffered Vitamin C powder with added potassium, ideal for individuals requiring significant Vitamin C intake or those with stomach sensitivity, though the dosage may be excessive for general daily use.

Quantity: 454 Gram(s)Servings size: 5 Gram(s) (84 servings)
Selected goals:
Other goals:
Heart Health
General Health
Fitness
Immunity
Skin Health

Score 78.0

A high-dose, buffered Vitamin C powder with added potassium, ideal for individuals requiring significant Vitamin C intake or those with stomach sensitivity, though the dosage may be excessive for general daily use.

Analysis

Life Extension's Buffered Vitamin C Powder is a well-formulated supplement providing 4000mg of Vitamin C (as ascorbic acid) per serving, alongside 365mg of potassium from potassium carbonate. The buffering agent helps to neutralize the acidity of ascorbic acid, which is a common concern for individuals experiencing stomach upset with traditional Vitamin C supplements. This product is particularly suited for those looking for therapeutic doses of Vitamin C or those who need to significantly boost their intake due to specific health conditions or intense physical activity. Online reviews consistently praise Life Extension for its quality ingredients and efficacy, aligning with its reputation among nutritionists as a reliable brand. While the high dosage is a key feature, it also means it's a very potent supplement that might exceed the needs of the average person, who typically benefits from 500mg to 2000mg daily. The powder form allows for flexible dosing, which is a significant advantage for those who want to adjust their intake precisely.

Pros
  • Features a buffered form of Vitamin C, reducing acidity and minimizing potential stomach discomfort for sensitive individuals.
  • Provides a very high dose of 4000mg Vitamin C per serving, beneficial for targeted therapeutic use or intense nutritional needs.
  • Includes a substantial amount of potassium (365mg), which contributes to electrolyte balance and overall cardiovascular health.
  • Powder form allows for highly flexible dosing, enabling users to customize their intake based on their specific requirements.
Cons
  • The 4000mg dosage is considerably higher than typical daily requirements, potentially leading to unnecessary consumption for general health maintenance.
  • The price per serving of 23 is relatively high compared to many standard Vitamin C supplements on the market, especially for everyday use.
  • While buffered, very high doses of Vitamin C can still cause mild gastrointestinal side effects like loose stools in some individuals.
  • Measuring powder accurately can be less convenient for some users compared to pre-dosed capsules or tablets.
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Effectiveness for goals

Dosage, timing & forms

Safety & interactions

Ingredients

IngredientAmount per serving
Vitamin C
4000 mg
Calcium
145 mg
Magnesium
55 mg
Zinc
2 mg
Potassium
365 mg
Gluten Free Adults 18–50 Vegetarian
Report overview

Categories

The inclusion of 365mg of potassium carbonate provides a notable amount of this essential electrolyte, contributing significantly to fluid balance, nerve signals, and muscle contractions, which is a strong benefit of this specific formulation.
This product provides an exceptionally high dose of buffered Vitamin C, which is advantageous for those with specific high-intake needs or stomach sensitivities. While beneficial, the 4000mg per serving can be an excessive amount for daily general Vitamin C supplementation.

Goals

Vitamin C is a cornerstone of immune health, and this product's very high 4000mg dose is highly effective at boosting immune response and supporting white blood cell function, particularly during periods of stress or illness.
Vitamin C is crucial for collagen synthesis, which is vital for skin elasticity and wound healing. Its antioxidant properties also protect skin from oxidative damage, and this high dose would provide significant support for skin health.
As a potent antioxidant, Vitamin C helps neutralize free radicals that contribute to cellular aging. The substantial dosage in this product provides strong antioxidant defense, supporting anti-aging processes at a cellular level.
98 Value

Gold C Vitamin C 1000 mg

California Gold Nutrition
4.8
(358411 ratings)
This product offers exceptional value with 1000mg of Vitamin C per serving at just 4 cents, combined with an enormous volume of positive reviews. It's an outstanding choice for those seeking a high-quality, high-dose Vitamin C at a very competitive price point.
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C 1000 mg

Swanson
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(1596 ratings)
Swanson delivers excellent value with its 1000mg Vitamin C, priced at just 4 cents per serving over 250 servings. This makes it a cost-effective solution for consistent high-dose Vitamin C intake from a trusted brand.
92 Value

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Nature's Bounty
4.7
(1194 ratings)
Another strong contender for value, Nature's Bounty offers 1000mg of Vitamin C for 4 cents per serving across a large 300-serving count. This provides a substantial supply of high-dose Vitamin C from a widely recognized and accessible brand.
88 Performance

Buffered Gold C

California Gold Nutrition
4.8
(46051 ratings)
This alternative offers buffered Vitamin C (Sodium Ascorbate) at a more moderate yet effective 750mg dose, making it a better choice for individuals seeking stomach-friendly Vitamin C without the extremely high 4000mg dosage. It also comes from a highly popular and well-reviewed brand.
85 Performance

C-500 Calcium Ascorbate-C

NOW
4.9
(6730 ratings)
This NOW product provides Calcium Ascorbate, another gentle and non-acidic form of Vitamin C, at a standard 500mg dose. It's a 'better' option for those who prefer calcium-buffered Vitamin C and don't require the very high dosage of the original product.
82 Performance

C 1000 mg with Rose Hips

21st Century
4.8
(4334 ratings)
While not buffered, the addition of Rose Hips in this 1000mg Vitamin C supplement provides naturally occurring bioflavonoids, which can enhance Vitamin C absorption and efficacy. This makes it a 'better' choice for many seeking comprehensive Vitamin C benefits with cofactors, at a more common high dosage.
95 Budget

C 500 mg

21st Century
4.8
(31743 ratings)
This product offers an extremely low price per serving (2 cents) for a standard 500mg Vitamin C dose, making it an excellent choice for cost-conscious consumers seeking basic Vitamin C supplementation. It provides a reliable amount for daily intake at a fraction of the cost.
90 Budget

C 500 mg

Nature's Bounty
4.7
(1168 ratings)
With a price per serving of 3 cents, this Nature's Bounty Vitamin C offers great value for a reputable brand. It provides a sufficient 500mg dose for daily general health and immune support without a high financial commitment.
90 Budget

C 500 mg

Swanson
4.8
(2179 ratings)
Swanson's 500mg Vitamin C is another highly affordable option at 3 cents per serving, delivering reliable Vitamin C support from a well-known supplement brand. It's a straightforward and economical choice for consistent daily use.
98 Value

Gold C Vitamin C 1000 mg

California Gold Nutrition
4.8
(358411 ratings)
This product offers exceptional value with 1000mg of Vitamin C per serving at just 4 cents, combined with an enormous volume of positive reviews. It's an outstanding choice for those seeking a high-quality, high-dose Vitamin C at a very competitive price point.
95 Value

C 1000 mg

Swanson
4.8
(1596 ratings)
Swanson delivers excellent value with its 1000mg Vitamin C, priced at just 4 cents per serving over 250 servings. This makes it a cost-effective solution for consistent high-dose Vitamin C intake from a trusted brand.
92 Value

C 1000 mg

Nature's Bounty
4.7
(1194 ratings)
Another strong contender for value, Nature's Bounty offers 1000mg of Vitamin C for 4 cents per serving across a large 300-serving count. This provides a substantial supply of high-dose Vitamin C from a widely recognized and accessible brand.
88 Performance

Buffered Gold C

California Gold Nutrition
4.8
(46051 ratings)
This alternative offers buffered Vitamin C (Sodium Ascorbate) at a more moderate yet effective 750mg dose, making it a better choice for individuals seeking stomach-friendly Vitamin C without the extremely high 4000mg dosage. It also comes from a highly popular and well-reviewed brand.
85 Performance

C-500 Calcium Ascorbate-C

NOW
4.9
(6730 ratings)
This NOW product provides Calcium Ascorbate, another gentle and non-acidic form of Vitamin C, at a standard 500mg dose. It's a 'better' option for those who prefer calcium-buffered Vitamin C and don't require the very high dosage of the original product.
82 Performance

C 1000 mg with Rose Hips

21st Century
4.8
(4334 ratings)
While not buffered, the addition of Rose Hips in this 1000mg Vitamin C supplement provides naturally occurring bioflavonoids, which can enhance Vitamin C absorption and efficacy. This makes it a 'better' choice for many seeking comprehensive Vitamin C benefits with cofactors, at a more common high dosage.
Report alternatives