
Prime Forever Skin Preservation Collection
The No7 Prime Forever Skin Preservation Collection is built around a proprietary Antioxidant Peptide blend — described by No7 as their strongest ever broad-spe…

£20.00
Designs for Health Magnesium Glycinate Complex is a chelated magnesium supplement in which the mineral is bound to the amino acid glycine.
Secure checkoutFree standard delivery on all orders30-day returns
Designs For HealthMagnesium Glycinate Complex
The No7 Prime Forever Skin Preservation Collection is built around a proprietary Antioxidant Peptide blend — described by No7 as their strongest ever broad-spe…

Spermidine is a naturally occurring polyamine compound found in wheat germ and a range of other food sources.
Interested in more
personalised recommendations?
Set up your
Profile to connect your wearables, biomarkers and test results. Create a bespoke plan based on your unique biology. Expert-led, evidence-based.
Designs for Health Magnesium Glycinate Complex is a chelated magnesium supplement in which the mineral is bound to the amino acid glycine. This form is widely chosen over cheaper oxide or carbonate forms because chelation improves absorption across the gut wall and tends to be gentler on the digestive system. Magnesium plays a role in hundreds of enzymatic processes — among them, nerve signal regulation, muscle contraction and relaxation, and the synthesis of neurotransmitters relevant to sleep and mood. It is studied for supporting sleep quality, reducing muscle cramps, and maintaining a calm nervous system, which places it squarely in the cognition and recovery pillar.
This supplement suits people who eat a reasonably varied diet but still fall short of adequate magnesium intake — a common picture in those under sustained stress, athletes in heavy training, or anyone whose blood work or clinical review suggests suboptimal status. It is also frequently recommended to those who have tried cheaper magnesium forms and experienced gastrointestinal discomfort.
Designs for Health is a practitioner-grade brand with a long-standing reputation for formulation rigour. Their glycinate complex is straightforward in composition — no unnecessary fillers competing with the active — which is why it earns a place on a clinician-curated shelf alongside more complex stacks.
Magnesium Glycinate

Take 2 capsules daily, as directed on the packaging. Magnesium glycinate is generally well tolerated with or without food, though taking it in the evening may align with its relaxation and sleep-support properties. If you are new to magnesium supplementation, starting with the recommended dose and reviewing after four to six weeks is sensible.
Magnesium oxide has a high elemental magnesium content on paper but poor bioavailability — much of it passes through unabsorbed and can cause loose stools. Glycinate is a chelated form, meaning the magnesium is bound to an amino acid, which supports better absorption and is considerably gentler on the gut.
Most people notice improvements in sleep quality and muscle tension within two to four weeks of consistent use, though this varies depending on your baseline magnesium status. A blood test before and after supplementation is the clearest way to track change.
Magnesium can interact with certain medications, including some antibiotics, diuretics, and medications for heart conditions. If you are on any prescription medicines, check with your GP or pharmacist before adding magnesium to your routine.
People under chronic stress, endurance athletes, those with disrupted sleep, or anyone whose diet is low in magnesium-rich foods such as leafy greens, nuts, and seeds. Confirmed low magnesium on a blood panel is the strongest indication for supplementing.
Magnesium glycinate is generally well tolerated without food, unlike some other mineral supplements. However, if you find any mild digestive sensitivity, taking it with a small meal resolves this for most people.
We offer physician-led talks and events to help you learn more about how to deal with stress through movement, mindfulness, and refocusing.
Learn about our next event
Overall Sentiment
5 months ago
Been taking this for about six weeks now, started it on the advice of my GP after a blood test flagged low magnesium. I take two capsules about an hour before bed and the difference in my sleep has been noticeable — I'm dropping off faster and not waking at 3am like I used to. Tried a cheaper oxide form from a supermarket brand before this and it gave me terrible stomach cramps. No issues whatsoever with this one.
5 months ago
Does exactly what it says. Sleep is better, leg cramps after long runs have basically gone. Would buy again.
5 months ago
I've noticed a real improvement in how quickly I wind down in the evenings, and I've had zero digestive issues which was my main concern after a bad experience with a different form. Only gripe is the capsule size — they're quite big and I do struggle a bit to swallow them. Not a dealbreaker, but worth flagging if you have difficulty with larger tablets.
6 months ago
Switched from a cheaper brand and the difference is noticeable. Calmer evenings, less muscle twitching. The fact that it's so clean — no unnecessary extras — was what drew me to it and I haven't been disappointed.
6 months ago
I was a bit hesitant at £18.99 when you can get magnesium for £5 elsewhere, but I'd spent months with digestive upset from cheaper forms and this has been completely fine on my stomach. Take it before bed, sleep feels deeper. My nutritionist recommended this brand specifically and I trust that now.
7 months ago
No complaints about how it works — I've been sleeping better and the muscle soreness after training sessions has eased up noticeably. My only issue is the price. At £18.99 for this size, it adds up when you're stacking it with other supplements. I get that it's a better form, but a slightly larger container for the money would make it an easy five stars.
A blood test is the only way to know what your body actually needs. We’ll tell you which of these supplements is right for you.
Find your panel
A curated selection of products, tools and rituals, chosen by our doctors.
Loading the catalogue…