Potassium with Extend-Release Magnesium
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
Cellulose, Microcrystalline Cellulose, Rice Concentrate, Ethylcellulose, Medium Chain Triglyceride, Oleic Acid, Hydroxypropyl Methylcellulose, Silica
Recommended Use
Directions: Take one (1) capsule once or twice daily, or as recommended by a healthcare practitioner.
Warnings
Read the entire label and follow directions carefully prior to use. Caution: If taken in high doses, magnesium may have a laxative effect. If this occurs, divide dosing, reduce intake, or discontinue product. 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 physi
Frequently Asked Questions
What is Life Extension Potassium with Extend-Release Magnesium's Formulate score?
Life Extension Potassium with Extend-Release Magnesium scores 84 out of 100 (grade A-) 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 Potassium with Extend-Release Magnesium worth it?
Life Extension Potassium with Extend-Release Magnesium scores 84/100 (grade A-). That puts it in Formulate's top tier: its ingredient doses, forms, and label transparency hold up against the clinical evidence, and it carries credible third-party 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 Potassium with Extend-Release Magnesium?
Each serving contains Magnesium (250 mg), Potassium (99 mg). Serving size: 1 Vegetarian Capsule(s). 60 servings per container.
How do I take potassium with extend-release magnesium?
Directions: Take one (1) capsule once or twice daily, or as recommended by a healthcare practitioner.
Who makes Potassium with Extend-Release Magnesium?
Potassium with Extend-Release Magnesium is made by Life Extension. See Formulate's full grade and product lineup for Life Extension on its brand page.
Is Life Extension Potassium with Extend-Release Magnesium third-party tested?
Life Extension lists the following certifications and testing for this product: Gluten free Non GMO LE Certified, Gluten-Free.
Related Supplements
Track potassium with extend-release magnesium in your stack
Build a personalized supplement stack free in your browser — no install. Flag dose overlaps and interactions, and keep every product scored against the latest evidence.
Is Potassium with Extend-Release Magnesium right for your goals?
Two questions, then every ingredient graded against what you're actually trying to do — plus what it costs per effective dose.
Build my stack2 questions · free · no account needed to start
Also on iPhone — get the free app
Evidence-based supplement guides, no spam
We send a short digest when new guides drop — nothing else. No affiliate pushes, no sponsored content, unsubscribe anytime.
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.