Hugo Dover

"Very quick delivery. Used 3 times, each order arrived the next day before 12:00. Product quality is exactly as described."

Hugo Dover Verified
Elina Goulliard

"Reliable & original products, with fast next day delivery. Have been using Welzo for over a year now."

Elina Goulliard Verified
Elizabeth Moore

"Welzo is great, lots of support from customer service who are easy to get a hold of and quick delivery."

Elizabeth Moore Verified

Source Naturals Magnesium Citrate 133mg 180 Capsules

1 Reviews
£26.10

Source Naturals magnesium citrate is an easily absorbed magnesium supplement built to support muscle relaxation, better sleep and heart health for daily wellbeing.

Delivery tomorrow, 3 bought this week

Quantity

4+Save 5% 4Save 5%
Verified Authenticity
Money-Back Guarantee
Easy Returns

100% Money back guarantee, no questions asked

Secure Transaction

VISA Pay AMEX Pay
Excellent Trustindex

Fast UK delivery from £3.99

Order within for next-day delivery

As seen in

Source Naturals magnesium citrate is an easily absorbed magnesium supplement built to support muscle relaxation, better sleep and heart health for daily wellbeing. Magnesium citrate is recognised for strong absorption, helping magnesium reach muscles and nerves quickly. Source Naturals carries a long standing heritage in science based supplements.

Available Sizes & Variants:

180 capsules - a generous monthly supply for daily magnesium support.

Benefits & Features:

  • Supports muscle relaxation daily.
  • Promotes restful sleep and healthier heart function thanks to the highly absorbable magnesium, and is a natural vitamin d supplement option for daily joint and bone support.
  • 133 mg magnesium per capsule helps maintain steady daily intake for overall wellbeing.
  • Highly absorbable citrate form supports greater magnesium uptake and effective use in the body.
  • High solubility makes magnesium citrate highly absorbable, supporting balance of minerals in cells and steady heart rhythm, while relaxing muscles for everyday comfort and gentle exercise recovery.
  • Probiotics can complement this routine for gut health and overall vitality when used as part of a balanced daily regimen.

Source Naturals has built a trusted portfolio of straight talking, science based supplements. Magnesium citrate’s high solubility makes it one of the best absorbed forms, helping magnesium reach cells more efficiently. This 180 capsule bottle makes daily magnesium support easy to fit into a busy life, supporting muscle relaxation, sleep, and heart health. The brand emphasises clean formulations and predictable sourcing, so you can feel confident adding this essential mineral into your everyday routine.

Other Ingredients - Gelatin (capsule), Silica, Magnesium stearate, and Dibasic calcium phosphate.
Free From - Yeast, Dairy, Egg, Gluten, Soy, Wheat. Sugar, Starch, Preservatives, or Artificial colour, Flavour or Fragrance.

GTIN
21078021001
Manufacturer
Source Naturals
Best buy
6 to 24 months+

United Kingdom & Rest of the World Shipping Details:
Same day dispatch for orders placed by 2pm (Orders after 2pm dispatched 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 14 days in the same original and unopened packaging. Subject to T&C's.

Welzo is a UK-based health platform. Orders ship from the UK.

Take one capsule one to three times a day with meals.

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

Serving Size : 1 Capsule
Ingredients  Typical Amount per Serving %RI*
Magnesium (as magnesium citrate & magnesium stearate) 133mg 32

* Reference Intake
** Reference Intake value not established

The Active Ingredient Is: Magnesium (Citrate Form)

Magnesium is an essential mineral that supports energy production, muscle function, and normal nerve activity. Magnesium citrate is a highly absorbable form, enabling magnesium to reach tissues efficiently. Its solubility supports bioavailability, which is why it is commonly used in supplements.

What Does Magnesium (Citrate Form) Do?

Magnesium plays a role in over 300 enzymatic processes, supporting muscle relaxation, normal nerve function, and energy metabolism. EFSA notes that magnesium supports normal muscle function and energy production, and the citrate form is highly bioavailable, aiding absorption. Dr. Walker of the University of Nebraska found that magnesium citrate is highly bioavailable.

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

Dietary supplements are not a replacement for a balanced diet. Do not take more than the recommended amount. Keep in a cool, dry area away from light and heat. Ensure they are out of children's reach and view.

Source Naturals stands out for delivering a highly absorbable magnesium option with magnesium citrate, a form recognised for its solubility and efficient uptake. This aligns with Welzo's commitment to partnering with brands that prioritise bioavailability and patient experience. Our doctors and nutritionists evaluated this manufacturer’s credentials and confirmed that the product delivers a reliable magnesium citrate profile suitable for everyday use, supported by clear evidence of absorption advantages.

This brand profile integrates with Welzo's quality standards through our rigorous evaluation process, where the team assesses manufacturing quality and formulation integrity. The partnership is reinforced by Welzo's healthcare professionals who review product evidence and ensure alignment with our safety and effectiveness criteria, and by our quality certification process that governs testing and purity validation.

Source Naturals Magnesium Citrate is particularly well suited for this supplement category due to its high absorbability and straightforward capsule form, making it a dependable choice for Welzo customers seeking quality magnesium support.

Part of the Welzo System™

Test, supplement, enhance, and move, all in one place.

3 bought this week
30-Day Money Back Guarantee
GMP Certified Facilities
Third-Party Tested
Vegan & Non-GMO
Rated Excellent
by 28,000+ Positive ReviewsTrustindex verified
Rated 4.8/5 by 27,000+ Customers
UKAS Accredited Labs
Free Next-Day Delivery Over £50
Science-Backed Formulations

Frequently Asked Questions

Everything you need to know about this product.

Third Party Tested
Trusted by 200,000+ Customers
Pharmaceutical-Grade Quality
UK-Based Customer Support