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SynaQuell+ NSF-CERTIFIED FOR SPORT®
Thorne’s SynaQuell+ blends magnesium, DHA, and riboflavin to help keep your mind sharp and support daily cognitive function.
Free sample each month
Pause or cancel anytime
365 day free returns
Back in stock: 16/07/2025
Buy now, pay later from £33.25/mo
Key Benefits
-
With magnesium, DHA, betaine, and riboflavin to help maintain normal brain function and support cognitive health.
-
Magnesium and riboflavin contribute to the reduction of tiredness and fatigue—ideal for busy days.
-
Magnesium supports normal functioning of the nervous system and psychological function, while riboflavin also helps your nervous system work as it should.
-
NSF Certified for Sport® for trusted quality and peace of mind.
Stay focused and energised with SynaQuell+ NSF-Certified for Sport®—a thoughtfully crafted blend of magnesium, DHA, betaine, and riboflavin. Magnesium and riboflavin help reduce tiredness and fatigue, so you can keep up with life’s demands. DHA supports the maintenance of normal brain function, while betaine contributes to normal homocysteine metabolism.
This advanced formula combines vitamins, minerals, and plant extracts to help you stay mentally sharp, day after day.
SynaQuell+ NSF-Certified for Sport® offers a unique level of assurance for athletes, as every batch undergoes rigorous testing for compliance with label claims and to ensure it is free from over 200 substances banned by major athletic organisations. This certification guarantees that the product meets the highest standards of quality and safety, giving you confidence in both its effectiveness and reliability. With SynaQuell+, you can enhance brain function and cognitive health without compromising on safety or performance.
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.
Beta Hydroxybutyrate (as Magnesium Beta Hydroxybutyrate), Betaine Anhydrous (Trimethylglycine), Coenzyme Q10, Curcumin Phytosome (Meriva), DHA (Docosahexaenoic Acid), Glutathione (Reduced), L-Isoleucine, L-Leucine, L-Valine, Magnesium (as Magnesium Bisglycinate), Magnesium Beta Hydroxybutyrate, Nicotinamide Riboside, Riboflavin (as Riboflavin 5'-Phosphate Sodium), Trans-Resveratrol, Other Ingredients: Carboxymethylcellulose Gum, Citric Acid, Flavors, Rebaudioside A.
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.
SynaQuell+ NSF-CERTIFIED FOR SPORT®
Thorne’s SynaQuell+ blends magnesium, DHA, and riboflavin to help keep your mind sharp and support daily cognitive function.
Free sample each month
Pause or cancel anytime
365 day free returns
Back in stock: 16/07/2025
Buy now, pay later from £33.25/mo
Key Benefits
-
With magnesium, DHA, betaine, and riboflavin to help maintain normal brain function and support cognitive health.
-
Magnesium and riboflavin contribute to the reduction of tiredness and fatigue—ideal for busy days.
-
Magnesium supports normal functioning of the nervous system and psychological function, while riboflavin also helps your nervous system work as it should.
-
NSF Certified for Sport® for trusted quality and peace of mind.
Stay focused and energised with SynaQuell+ NSF-Certified for Sport®—a thoughtfully crafted blend of magnesium, DHA, betaine, and riboflavin. Magnesium and riboflavin help reduce tiredness and fatigue, so you can keep up with life’s demands. DHA supports the maintenance of normal brain function, while betaine contributes to normal homocysteine metabolism.
This advanced formula combines vitamins, minerals, and plant extracts to help you stay mentally sharp, day after day.
SynaQuell+ NSF-Certified for Sport® offers a unique level of assurance for athletes, as every batch undergoes rigorous testing for compliance with label claims and to ensure it is free from over 200 substances banned by major athletic organisations. This certification guarantees that the product meets the highest standards of quality and safety, giving you confidence in both its effectiveness and reliability. With SynaQuell+, you can enhance brain function and cognitive health without compromising on safety or performance.
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.
Beta Hydroxybutyrate (as Magnesium Beta Hydroxybutyrate), Betaine Anhydrous (Trimethylglycine), Coenzyme Q10, Curcumin Phytosome (Meriva), DHA (Docosahexaenoic Acid), Glutathione (Reduced), L-Isoleucine, L-Leucine, L-Valine, Magnesium (as Magnesium Bisglycinate), Magnesium Beta Hydroxybutyrate, Nicotinamide Riboside, Riboflavin (as Riboflavin 5'-Phosphate Sodium), Trans-Resveratrol, Other Ingredients: Carboxymethylcellulose Gum, Citric Acid, Flavors, Rebaudioside A.
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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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.
Healf Curation Process™
Every product undergoes our rigorous Healf Curation Process, ensuring you are always getting the best when it comes to your wellbeing.
The Discovery
Expert Validation
Community Testing
The Discovery
Expert Validation