Life Extension Potassium with Extend-Release Magnesium is a two mineral supplement that supports healthy blood pressure and cardiovascular function for daily wellbeing. The blend pairs magnesium (extended-release and immediate forms) with potassium to support steady absorption and balanced circulation. Life Extension keeps strict quality controls and clear, clean labelling, helping you trust what you take. Quality you can feel.

Available Sizes & Variants:

60 capsules – convenient daily dose for reliable mineral support.

Benefits & Features:

• Supports healthy blood pressure with a balanced mineral mix.
• Magnesium is provided in extended-release and immediate forms to promote steady absorption.
• Potassium helps balance sodium and supports healthy circulation and fluid balance.
• Non-GMO, vegetarian capsules align with clean label expectations and trusted manufacturing.
• The Life Extension commitment to quality and transparency means you can rely on steady mineral support that harmonises with everyday health routines, backed by strict testing and clear labelling.

Life Extension has built a long standing reputation for transparent ingredients and rigorous quality, and this formula exemplifies that. The magnesium here comes as extended-release oxide and citrate, not magnesium glycinate, yet it’s designed for steady absorption and cardiovascular support. The brand's non-GMO, vegetarian approach and GMP aware production set it apart in the potassium supplements category. For people shopping a vitamin d supplement alongside minerals, this product slots neatly into a balanced daily routine.

Magnesium (as ZumXR magnesium oxide, magnesium citrate), Potassium (as Potassium Chloride), Magnesium (as ZumXR magnesium oxide, magnesium citrate), Potassium (as Potassium Chloride)

• GTIN: 737870230960
• Manufacturer: Life Extension
• Categories: Blood Pressure SupplementsCardiovascular HealthLife ExtensionMagnesium SupplementsMineralsPeriod PainPotassium SupplementsStress Relief & Calming SupplementsXtend Supplements
• Best buy: 6 - 24 months+

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the next working day.

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 30 days in the same original and unopened packaging. Subject to T&C's.

Take one (1) capsule once or twice daily, with or without food, or as recommended by a healthcare practitioner. Store in a cool, dry place. Keep out of reach of children. Do not exceed the recommended dose. If taken in high doses, magnesium may have a laxative effect. If this occurs, divide dosing, reduce intake, or discontinue product. Consult with your physician if you are undergoing treatment for a medical condition or if you are pregnant or lactating.

Please consult the product packaging for accurate instructions on how to use the product.

*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

The Active Ingredient Is: Magnesium Extend-Release Form

Magnesium is an essential mineral involved in muscle function and cardiovascular health. This product provides magnesium in extend-release form to support sustained availability in the body.

The magnesium in this formula is presented as extend-release magnesium oxide and magnesium citrate, with other ingredients included to support the delivery and uptake of minerals from the supplement matrix.

What Does Magnesium Do?

Magnesium aids in maintaining normal muscle and nerve function and supports normal energy production and electrolyte balance. It also contributes to the normal function of the cardiovascular system and helps support electrical conduction in the heart, aligning with EFSA-referenced mineral roles.

This combination may work with potassium to support balanced circulation and cardiovascular function as part of a healthy diet and lifestyle.

This product is not intended to diagnose, treat, cure, or prevent any disease.

Life Extension is the brand we picked for this supplement because we look for a partner with a proven track record of scientific rigour, openness and quality in every product. This brand shines compared to rivals through its long‑standing market presence, evidence‑driven formulation approach and consistently high trust from customers in the wellness community. To support this, Life Extension emphasises rigorous ingredient standards and clear, clean labeling, including non‑GMO and gluten‑free formulations, with manufacturing practices aligned to GMP guidelines. Our evaluation also recognised their commitment to traceable ingredients and scientific stewardship, which aligns with our own standards for safety and quality as reflected in our ingredient quality and purity standards and the expertise of our team of medical experts.

This brand excels in delivering well‑constructed mineral blends, such as potassium with extend‑release magnesium, that are particularly suited to supporting cardiovascular‑related nutrient balance while remaining suitable for the British market. This brand‑product pairing was therefore our clear selection decision, grounded in brand credibility and product integrity.