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Sleep & Recovery
Magnesium Glycinate
$22$28Save $6
400mg elemental magnesium per serving — a clinically effective dose
Glycinate chelate form: superior absorption, gentle on the gut
Supports deep sleep, muscle relaxation, and nervous system calm
No laxative effect unlike magnesium oxide or citrate at this dose
Third-party tested for heavy metals and potency. Certificate available per batch.
Size
🚚 Ships within 24 hrs↩️ 60-day returns🔒 Secure checkout🔬 Third-party tested
Estimated delivery: Order today, receive by May 9–12. Ships from Austin, TX.
About 48% of Americans are deficient in magnesium. You're probably one of them.
Magnesium is involved in over 300 enzymatic reactions in the body — from ATP production to DNA synthesis to muscle contraction to nerve signaling. It's one of the most abundant minerals in your cells. And most people aren't getting enough of it.
The problem isn't just diet. Modern soil depletion means even whole foods contain less magnesium than they did 50 years ago. Stress depletes it. Alcohol depletes it. So does intense exercise. The symptoms of deficiency are diffuse enough that most people never connect them: poor sleep, muscle cramps, anxiety, low energy, constipation, headaches. These aren't separate problems — they're the same mineral doing too many jobs with not enough supply.
The form matters enormously. Magnesium oxide — the type in most cheap supplements — has roughly 4% bioavailability. Magnesium glycinate is chelated to the amino acid glycine, which acts as a carrier into intestinal cells. It absorbs far more completely and is gentle enough that even people with sensitive guts tolerate it well. Glycine itself has calming properties, which is why magnesium glycinate is particularly effective taken before bed. Four capsules. 400mg elemental magnesium. That's it.
Key features
Deeper sleep
Magnesium regulates GABA receptors and melatonin synthesis. Clinically studied for reducing sleep onset time and increasing sleep quality.
Muscle recovery
Supports post-workout muscle relaxation and reduces cramps by regulating calcium channel activity in muscle cells.
Calm nervous system
Glycinate form provides glycine's inherent calming properties alongside magnesium's role in downregulating cortisol response.
Glycinate chelate
Superior gut absorption compared to oxide (4% bioavailability) or even citrate. No laxative effect at this dose.
Energy & ATP
Magnesium is a cofactor in ATP synthesis. Low magnesium = low cellular energy, regardless of how well you eat or sleep.
Third-party tested
Certificate of Analysis available for every production batch. No proprietary blends, no hidden fillers.
Supplement facts
| Serving size | 4 capsules |
| Servings per container | 30 |
| Magnesium (as magnesium glycinate) | 400mg |
| Other ingredients | Rice flour, vegetarian capsule (hypromellose) |
| Allergens | None. Gluten-free, soy-free, dairy-free, vegan. |
| Suggested use | Take 4 capsules 30–60 minutes before bed, or as directed by your healthcare provider. |
| Best by | 24 months from manufacture. Store in a cool, dry place. |
| Country of manufacture | USA (NSF-certified, cGMP facility) |
How we compare
| Feature | Erivelle Magnesium | Magnesium oxide brands | Magnesium citrate brands |
|---|---|---|---|
| Form | Glycinate ✔ | Oxide ✘ | Citrate (better, but less absorbed than glycinate) |
| Bioavailability | High ✔ | ~4% ✘ | Moderate |
| Laxative effect risk | None ✔ | High ✘ | Moderate at this dose ✘ |
| 400mg elemental magnesium | ✔ | Often 200–250mg ✘ | Varies ✘ |
| Vegan capsule | ✔ | Often gelatin ✘ | Varies |
| 60-day guarantee | ✔ | ✘ | ✘ |
Questions about this product
Magnesium glycinate — elemental magnesium chelated to the amino acid glycine. This form has superior gut tolerance and absorption compared to magnesium oxide or citrate.
No. It supports a calmer nervous system state, which promotes sleep readiness at night, but it doesn't cause sedation or daytime drowsiness. Most people take it 30–60 minutes before bed.
Most people notice improved sleep quality and reduced muscle tension within 1–2 weeks of consistent use. Magnesium builds in your tissue gradually — the full effect is typically felt by week 3–4.
Yes. If you take D3+K2, taking them together is particularly synergistic — magnesium activates vitamin D, and D3 helps regulate magnesium absorption. You can take the magnesium at night and D3+K2 with breakfast.
Yes. Magnesium is an essential mineral and magnesium glycinate is gentle enough for daily, long-term use. The tolerable upper intake level (UL) for supplemental magnesium is 350mg/day in adults — our dose of 400mg is a therapeutic level used in clinical studies, and the glycinate form minimizes any GI risk at this level.
What customers say — 398 reviews · 4.9 avg
★★★★★April 28, 2025
I've tried six magnesium products. This is the one.
I've been chasing a solution to my sleep issues for three years. Melatonin made me groggy. Prescription sleep aids left me foggy. My doctor mentioned magnesium deficiency as a possible contributor. I tried three cheap oxide products with zero effect. Switched to this. Within two weeks, I was falling asleep faster and actually staying asleep past 4am. Now on my third bottle.
★★★★★March 18, 2025
Leg cramps completely gone
I'm a runner and leg cramps were waking me up multiple times a week. My sports med doctor said to try magnesium glycinate specifically, not citrate or oxide. This is exactly what she described. Three weeks in, zero cramps. Sleep is also noticeably better. Easy reorder.
★★★★★February 10, 2025
No GI issues at all
I tried magnesium citrate and it gave me stomach problems. Switched to this and zero issues. The capsules are easy to swallow and I take them about an hour before bed. My anxiety feels lower in the evenings and I'm sleeping through the night consistently now. Very happy with this product.