Buffered Vitamin C Powder
Scored by the Formulate Research Team · Last reviewed July 2026
Score Breakdown
Three factors carry this score; three more are checked separately and can only take points away. Hover or tap to see what drove each one.
Ingredients per Serving
Certifications & Testing
Other Ingredients
None
Recommended 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
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
Frequently Asked Questions
What is Life Extension Buffered Vitamin C Powder's Formulate score?
Life Extension Buffered Vitamin C Powder scores 76 out of 100 (grade B+) on Formulate's ingredient-level rubric: clinical evidence, dose accuracy and bioavailability carry the score, while manufacturing, transparency and safety are checked separately and can only deduct.
Is Life Extension Buffered Vitamin C Powder worth it?
Life Extension Buffered Vitamin C Powder scores 76/100 (grade B+). That's an above-average result — most of its doses and ingredient forms are well-chosen, with only minor gaps in dosing, transparency, or testing. Formulate grades every product with the same automated rubric, so the score reflects the formula — not marketing or sponsorships.
What's in Life Extension Buffered Vitamin C Powder?
Each serving contains Vitamin C (4000 mg), Calcium (145 mg), Magnesium (55 mg), Zinc (2 mg), and more. Serving size: 5.4 Gram(s). 84 servings per container.
How do I take buffered vitamin c powder?
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.
Who makes Buffered Vitamin C Powder?
Buffered Vitamin C Powder is made by Life Extension. See Formulate's full grade and product lineup for Life Extension on its brand page.
Is Life Extension Buffered Vitamin C Powder third-party tested?
Life Extension lists the following certifications and testing for this product: Gluten free Non-GMO LE Certified, Vegetarian, Gluten-Free.
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Disclosure. Formulate may earn a commission from purchases made through links on this page. Commissions never influence scores — every product is graded by the same automated rubric. This page is for educational purposes only and does not replace advice from a qualified healthcare provider.