Magnesium w/SRT (B-Free) is a magnesium supplement that helps with muscle relaxation and steady energy, thanks to its sustained release design and the trusted Jigsaw Health quality.

Available Sizes & Variants:

60 tablets – convenient daily dose for steady magnesium support.

Benefits & Features:

• Smooth muscle support keeps you relaxed all day long.
• Sustained release magnesium keeps levels steady, helping daily energy and reducing stomach upset compared with non sustained forms.
• GMP-certified production and transparent sourcing mean you’re getting a reliable magnesium product designed to support nerve function and overall wellness, with the brand's long standing commitment to quality.
• Designed for daily use, the B-Free formula avoids digestive discomfort that other magnesium products can cause, helping you take it consistently with your fitness or wellness routine.
• Pairing this magnesium with other supplements such as creatine can support your overall training goals as part of a balanced daily routine.

Jigsaw Health has built a solid reputation for quality since 2005, rooted in transparent sourcing and GMP-certified manufacturing. The star ingredient delivery uses a sustained release magnesium approach to support smooth uptake, minimising digestive upset. The brand’s loyal customer base and BBB accreditation reflect its long standing commitment to safety and reliability. Many customers find it pairs well with a vitamin d supplement or creatine as part of a balanced wellness routine.

Magnesium (as dimagnesium malate), Vitamin C (as ascorbyl palmitate), Vitamin B6 (as pyridoxal-5-phosphate), Folate (as Quatrefolic® 5MTHF), Vitamin B12 (as Methylcobalamin), Malic Acid (as dimagnesium malate).

• GTIN: 876634001542
• Manufacturer: Jigsaw Health
• Categories: Blood Pressure SupplementsJigsaw Health SupplementsMagnesium Supplements, Tablets & VitaminsMinerals SupplementsNew ArrivalsPeriod PainStress Relief & Calming 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 2 tablets every morning and evening. For advanced use, take 4 tablets in the morning and 4 in the evening, which can be divided into smaller doses if needed. Always consume with food or follow your healthcare professional's advice. Important: Consult a healthcare professional before using magnesium supplements if you are undergoing treatment for kidney disease, as there is a risk of magnesium toxicity.

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

The Active Ingredient Is: Magnesium (SRT Sustained-Release Form)

Magnesium is a handy mineral that helps with a bunch of normal body functions including muscles, nerves and energy production.

This slow-release version gives magnesium in small amounts over time to keep levels steady in the body.

What Does Magnesium Do?

Magnesium helps with muscle relaxation, energy production and nerve function as part of normal metabolism. It also plays a part in keeping bones healthy and maintaining ion balance, in line with EFSA guidance.

This product isn't meant to diagnose, treat, cure or prevent any disease.

Jigsaw Health brings a long-standing commitment to quality and customer satisfaction, started in 2005 and upholding a solid industry reputation for scientifically backed supplements. This heritage, backed by BBB accreditation since 2005, signals a trusted presence in the market and a steady track record of reliability that we recognise as essential in a partner for Welzo’s customers.

Our doctors and nutritionists evaluated Jigsaw Health against strict criteria and confirmed their clear focus on quality manufacturing standards, with products made in GMP-certified facilities. This aligns with our ingredient quality and purity standards and supports safe, transparent sourcing practices that underpin patient confidence. For how our expert team assesses brands, see Welzo's healthcare professionals.

The brand’s Magnesium w/SRT range is a great fit for this supplement’s design, prioritising a sustained release to help keep steady levels, a feature we value for product fit and consumer experience. We selected Jigsaw Health as a partner due to their heritage, quality focus, and commitment to transparent manufacturing—precisely the qualities that let Welzo deliver consistent value and assurance to customers.