Pure Encapsulations Magnesium Glycinate Review: Would Buyers Buy It Again?
Disclosure: As an Amazon Associate I earn from qualifying purchases. If you buy through links on this page we may earn a commission at no extra cost to you. How this review was made: We did not take or test this supplement. This verdict rests on a retailer label page, an independent heavy-metal test write-up and the NIH fact sheet, all listed at the end. We found no large independent trial of this specific product, and say so below. Our method.
A clean, simple magnesium, but you pay for the brand
The label is short: magnesium as glycinate, a vegetarian capsule and a small antioxidant. The retailer page shows a third-party-tested badge, though it does not name the lab. One independent tester found lead in the capsules, at a level she ranked below many competitors but about one part per billion above the top-ranked Doctor's Best, and she did not recommend it. For most buyers who want a gentle, single-ingredient magnesium it is a reasonable repeat; if you mainly want value or the lowest contaminant levels, other options compare well.
Check current price on Amazon → Prices and availability change often, so we don't list them here.Buy it again if you…
- want a simple magnesium with few added ingredients
- prefer the glycinate form, which is not tied to the laxative effect of some other forms
- like to adjust the dose by taking one to a few capsules
Skip it if you…
- are on a tight budget and just need any magnesium
- have kidney disease or take medicines that interact with magnesium without medical advice
- expect guaranteed sleep or mood effects
Pure Encapsulations Magnesium Glycinate is a capsule supplement. The retailer label lists 120 mg of magnesium (as magnesium glycinate) per capsule, with suggested use of one to four capsules a day with food.
Not medical advice. Supplements are not evaluated by the FDA to treat or prevent disease. Check with a doctor or pharmacist before using magnesium, especially if you are pregnant, take medication, or have a health condition such as kidney disease.
Research on what magnesium supplements actually do is modest, and independent data on this exact product is limited, so we flag thin evidence throughout.
What owners say, at a glance
Bars show our editorial summary of how consistently owners praise or complain about each area across all sources — not a lab measurement.
The key specs
| Form | Capsule, magnesium glycinate |
|---|---|
| Per capsule | 120 mg magnesium |
| Other ingredients | Vegetarian capsule (cellulose, water) and ascorbyl palmitate |
| Suggested use | 1 to 4 capsules a day with food |
| Package sizes | 90, 180 and 360 capsule counts listed |
What reviewers and sources like
What gives pause
What to know before you take it
- Medication timing. The NIH says magnesium can reduce absorption of some osteoporosis drugs and some antibiotics, so doses should be separated.
- Kidney function. Impaired kidneys clear magnesium poorly, which raises risk at high doses.
- Digestive effects. High supplemental doses often cause diarrhea, though the NIH ties this most to other forms.
How it holds up over time
For a supplement, "holding up" means whether people keep buying it. We found no long-term owner data specific to this product. Its simple formula and low-dose capsules suit people who adjust their dose, but we could not verify repeat-purchase rates.
Pros and cons
What owners love
- Single active ingredient in glycinate form
- 120 mg capsules allow flexible dosing
- Third-party tested badge shown by a retailer
- Short list of other ingredients
What owners complain about
- Premium-priced versus other magnesium glycinate options
- Independent test found some lead
- Testing lab not named on the retailer page
- Magnesium benefits beyond correcting low intake are modest
Other options buyers compare
These are the options most often compared with it.
| Product | Style | Consider it if… | |
|---|---|---|---|
| Pure Encapsulations Magnesium Glycinate (this review) | Capsule, 120 mg per capsule | You want a short label and flexible dosing | See on Amazon |
| Doctor's Best High Absorption Magnesium Read our review | Tablet, glycinate form | You want the option ranked slightly cleaner by the independent tester | See on Amazon |
| Magnesium-rich foods (nuts, seeds, leafy greens) | Diet | You are not sure you need a supplement | — |
Want a simple magnesium capsule?
Check current options and capsule counts on Amazon.
Frequently asked questions
Is magnesium glycinate gentler on the stomach?
The NIH names carbonate, chloride, gluconate and oxide as the forms most linked to diarrhea; it does not rate glycinate directly. High doses of any form can upset the stomach.
How much is too much?
The NIH sets the adult upper limit for supplemental magnesium at 350 mg a day, separate from food.
Does it help sleep?
The NIH fact sheet does not assess magnesium for sleep. Ask a doctor if sleep is a concern.
Is it third-party tested?
A retailer page shows a Third Party Tested badge without naming the lab. An independent tester also tested it for metals and found lead present.
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Sources we analyzed
- Tamara Rubin: Pure Encapsulations Magnesium Glycinate test — independent metals test, ranking versus Doctor's Best
- Professional Supplement Center: product page — label, serving and testing badge
- NIH Office of Dietary Supplements: Magnesium — upper limit, interactions, evidence
Figures reflect each source as of October 22, 2026 and may change. We summarize owner feedback in our own words and do not reproduce retailer reviews.