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L-Arginine - Sustained Release
Thorne’s L-Arginine - Sustained Release blends magnesium to help you feel energised and support your muscles, all day long.
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365 day free returns
In stock. Next day delivery available.
Buy now, pay later from £8.75/mo with
Free UK shipping over £50, free returns.
Feel energised and support your muscles, every day.
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With magnesium to help reduce tiredness and fatigue, and support normal muscle function.
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Sustained release formula helps maintain steady L-arginine levels for ongoing support.
Discover a supplement designed for your active lifestyle. L-Arginine - Sustained Release from Thorne delivers a steady supply of this conditionally essential amino acid, a key building block of protein. Each serving provides 1000 mg (1g) of L-arginine in a highly absorbable form, combined with Thorne’s Time-Sorb® complex for gradual release throughout the day. Magnesium in this formula contributes to the reduction of tiredness and fatigue, and supports normal muscle function—so you can keep moving, whatever your day brings. Choose L-Arginine - Sustained Release for daily support that fits seamlessly into your routine.
Thorne’s L-Arginine - Sustained Release features the innovative Time-Sorb® complex, which utilises a blend of hydroxypropyl methylcellulose and magnesium citrate laurate instead of traditional plasticizers, magnesium stearate, and waxes. This advanced formulation protects the active ingredient as it passes through the stomach, allowing for gradual release over an extended period. By maintaining optimal L-arginine levels in the body for over 24 hours, this sustained-release formula maximises the supplement’s efficacy, providing continuous support throughout the day.
Thorne sets the standard for excellence in the supplement industry. Recommended by over 100 professional sports teams and U.S. National Teams, Thorne offers a curated bundle of clean, science-backed supplements and treats designed to fuel your body naturally and effectively. With more than 30 years of dedication to quality, Thorne's commitment to purity and potency begins with sustainably sourced ingredients and rigorous testing. Every supplement undergoes four rounds of testing to ensure optimal absorption, safety, and efficacy, making Thorne the trusted choice for both health-conscious individuals and professionals.
With our Healf Curation Process, we do the work for you. Shop with confidence knowing that every item has been tried, tested, and curated for you.
Learn more about each step—Brand Discovery, Expert Validation, and Community Testing—here.
L-Arginine, Calcium Laurate, High and Low Viscosity Hydroxypropyl Methylcellulose, Leucine, Magnesium (Citrate), Silicon Dioxide.
Shipping
At Healf, we prioritize safe and fast delivery for all our customers. Our carefully selected couriers are Royal Mail and DPD.
UK standard delivery
Enjoy free standard delivery on orders above £50, this option usually requires 2-3 working days. If your order is under £50, this delivery option is available for £3.99.
Next working day
For when you need our products urgently, we offer next working day shipping for £5.99. For orders placed before 12.00, we will ship it the same day to ensure you receive your order the next working day.
International
International deliveries can take 7 working days, and up to 4 weeks. The cost is £22.99 for orders below £50, £49.95 for orders above.
Returns
If for any reason you are not satisfied with your order, we provide free 365-day UK returns for all our customers. To initiate your return, simply contact us at team@healf.com, and we'll send you a return slip and help arrange a collection. The item you return must be sent in the same condition as received and inside the original packaging. Once received, we will notify you via email.
For international returns, we unfortunately do not cover the cost. However, we work with an array of carriers and can offer self-posting returns for customers shopping from outside the UK.
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Frequently asked questions
Every product undergoes our Healf Curation Process. With it, you can shop confidently knowing that every item has been tried and tested before it reaches you. Our Healf Curation Process includes three key steps: Brand Discovery, Expert Validation, and Community Testing. Through these, we assess quality, ingredients, effectiveness, and more, ensuring that every product empowers your wellbeing.
The Healf Journal offers detailed insights into different aspects of wellbeing, as well as guidance, research, recipes, and more to help you invest in your personal wellbeing journey. You can also subscribe to our weekly newsletters for the latest updates at Healf and in the wellbeing industry. Subscribe via the sign-up block at the bottom of this page.
We love people who check ingredients as carefully as we do, so you'll find detailed information about the ingredients used on every product page (where applicable). If you see something you'd like to flag with us or have additional questions, please don't hesitate to get in touch—we'd love to hear from you.
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