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Magnesium Glycinate Supplement

$ 19.95

Magnesium Glycinate promotes relaxation and supports overall wellness, making it a great addition to your daily routine.
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Description

Magnesium is an essential mineral and one of the body’s key electrolytes. While many foods naturally contain magnesium, many people do not get enough from diet alone. Magnesium glycinate, also known as magnesium bisglycinate, is a form of magnesium made by binding elemental magnesium to glycine, an amino acid often associated with relaxation and sleep support. This makes magnesium glycinate a popular choice for those looking to support relaxation, calmness, and overall sleep quality.


NSF INDEPENDENTLY CERTIFIED: Double Wood’s Magnesium Glycinate is independently certified by NSF International, a globally recognized third-party organization that verifies label accuracy, ingredient potency, and tests for harmful contaminants, with annual audits to help ensure ongoing compliance.


Soy-Free, Gluten-Free, Non-GMO, Vegan

Benefits
  • YOU’RE LIKELY MAGNESIUM DEFICIENT - According to World Health Organization statistics, as much as 75% of the U.S. adult population does not meet the U.S. Food and Drug Administration’s Recommended Daily Intake of 420 mg
  • EASY ON THE STOMACH: Magnesium Glycinate is created by bonding the elemental magnesium with the amino acid glycine, resulting in a form of magnesium that is easier on the stomach than other forms such as magnesium oxide
  • SIX MONTH SUPPLY: Each capsule contains 400mg of Magnesium Bisglycinate (aka glycinate)
  • ROOTED IN QUALITY: Manufactured and Tested in the USA from Globally Sourced Ingredients. Double Wood's Magnesium Glycinate 400mg is manufactured and tested for microbes and heavy metals right here in the USA from Globally Sourced Ingredients. Plus, it is Non-GMO and gluten-free
  • WE BOTTLE WELLNESS: At Double Wood we provide pure, potent supplements that 5deliver exceptional value, all backed by careful sourcing and rigorous third-party testing

Directions & Dosage

As a supplement for sleep support, we recommend taking 1-2 capsules (400 – 800 mg) of Magnesium Glycinate in the evening about an hour before bed with or without food. While higher doses can be taken safely we don’t recommend exceeding 4 capsules per day.

Magnesium Glycinate consists of 15% elemental magnesium by weight, so each 400 mg capsule contains 60 mg of elemental magnesium.

The Science Behind Magnesium Glycinate

Magnesium form matters. In a randomized, double-blind study comparing magnesium citrate, magnesium amino-acid chelate, and magnesium oxide, organic forms showed better magnesium bioavailability than magnesium oxide. (Walker AF et al., Magnesium Research, 2003) View study

Glycine has been studied for sleep support. Research published in Neuropsychopharmacology found that glycine may support sleep by promoting a normal drop in core body temperature and shortening non-REM sleep latency in a sleep-disturbance model. (Kawai N et al., 2015) View study

Many Americans fall short on magnesium from diet alone. An analysis of NHANES 2013–2016 data found that 48% of Americans consumed less magnesium from food and beverages than their Estimated Average Requirement. (NIH Office of Dietary Supplements; USDA NHANES 2013–2016) View source

View Latest Test Results

Third-party tested for quality and purity

This production lot was tested for magnesium glycinate and elemental magnesium content, capsule weight, heavy metals, and microbial quality

Test Claim or Limit Result
Potency
Magnesium (as Magnesium Glycinate) NLT 60 mg 61.9 mg
Magnesium Glycinate NLT 400 mg 439.0 mg
Physical Testing
Capsule Weight 586.34-648.06 mg 618 mg
Heavy Metals
Arsenic ≤16.2 ppm 0.094 ppm
Cadmium ≤6.6 ppm 0.029 ppm
Lead ≤0.8 ppm 0.007 ppm
Mercury ≤0.5 ppm 0.003 ppm
Microbial Testing
Total Plate Count ≤10,000 cfu/g <10 cfu/g
Total Yeast & Mold Count ≤1,000 cfu/g <10 cfu/g
Coliform ≤100 cfu/g <10 cfu/g
E. Coli Absent Absent
Salmonella spp. Absent Absent
Staphylococcus aureus Absent Absent

Lot: AILCIManufactured: 02/2026

Lab: Canyonside Labs - Twin Falls ID

View Certificate of Analysis (PDF)

See the original Certificate of Analysis for complete testing details, methods, and laboratory documentation.
View Certificate of Analysis View Third Party Test Results

Every batch is manufactured in a cGMP facility and third-party tested for identity, potency, and contaminants including lead, cadmium, arsenic, and mercury.

Identity, potency, and contaminants verified per batch Identity, potency, and contaminants verified per batch
Manufactured in an FDA-registered cGMP facility Manufactured in an FDA-registered cGMP facility
Manufactured in the USA from Gloabally Sourced Materials Manufactured in the USA from Gloabally Sourced Materials
NSF Certified NSF Certified

Benefits

  • EASY ON THE STOMACH - Since Magnesium Glycinate is better absorbed compared to other forms of magnesium it is easier on the stomach and less likely to cause side effects
  • MAGNESIUM GLYCINATE 400MG - Each capsule contains 400mg of Magnesium Bisglycinate (aka glycinate)
  • SIX MONTH SUPPLY- Double Wood's Magnesium Glycinate 400mg supplement contains 180 capsules of 400mg each. Enough servings to last 6 months.
  • MAGNESIUM SUPPLEMENT - Our Magnesium Glycinate 400mg capsules are manufactured / tested in the USA from Globally Sourced Ingredients, Gluten Free, and are Non-GMO
Benefits

Magnesium Glycinate

A chelated form of magnesium bound to glycine. As a dietary nutrient, it is found in foods and may complement an everyday nutrition routine. It is commonly chosen to supports relaxation, restful sleep, and muscle/nerve function.

Magnesium Glycinate

What Customers Are Saying

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"Very pleased with the service, from placing my order to receiving it. Painless, simple, and quick."

Craig V.

"Doublewood has consistent quality shipping, great product introductions, and tracks previous orders, and provides incentives for frequent customers. Products are single ingredient supplements, for optimal dosage. Great source for unique supplements."

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Supplement Facts

Pairs well with

Powerful alone, stronger together. Magnesium Glycinate Supplement delivers targeted support on its own, but combining it with complementary ingredients can help create a more holistic and balanced approach to wellness.

Frequently Asked Questions

When is the best time to take magnesium glycinate?

The best time to take magnesium glycinate is typically in the evening or before bed, as it may promote relaxation and improve sleep quality. It can also be taken with meals to enhance absorption and reduce the possibility of GI distress.

What is magnesium glycinate good for, and what are its benefits?

Magnesium glycinate is highly regarded for its ability to support relaxation, muscle cramps, and sleep quality, as it is easily absorbed by the body. It also supports stress management, heart health, and ensure you are receivng the RDA of Magnesium to prevent deficiencies.

How much magnesium glycinate should be taken for sleep?

For sleep support, you can take magnesium glycinate in doses of 200 to 400 mg, around 30 minutes to an hour before bedtime. Starting with a lower dose and adjusting as needed based on individual response can help ensure effectiveness and absorption while minimizing side effects.

Is magnesium glycinate safe to take every day?

Magnesium glycinate is commonly taken daily when used as directed. The NIH Office of Dietary Supplements lists the adult Tolerable Upper Intake Level for supplemental magnesium at 350 mg per day, not including magnesium naturally found in food. Double Wood Magnesium Glycinate provides 60 mg elemental magnesium per capsule, which is well below that supplemental upper limit. People with kidney disease or those taking medication should consult a healthcare professional before use.

Can I take magnesium glycinate with other supplements?

Magnesium glycinate is often taken alongside common supplements such as vitamin B6, calcium, zinc, vitamin D, and sleep-support formulas. Magnesium and B6 are frequently paired for nervous system support, while calcium and magnesium are commonly used together for bone and muscle health. If taking zinc, calcium, or iron, some people prefer spacing minerals apart to support comfortable digestion and absorption. Always follow label directions and check with your healthcare provider if you take medications.

Is Double Wood Magnesium Glycinate third-party tested?

Yes. Every batch is third-party tested for identity, potency, heavy metals, and microbial safety by an ISO/IEC 17025-accredited laboratory. The most recent COA (Lot AILCI, manufactured February 2026, reviewed 3/20/2026) reports the full analytical panel: active assay, four heavy metals by ICP-MS (arsenic, cadmium, lead, mercury), and six microbial screens (Total Plate Count, Yeast & Mold, Coliform, E. coli, Salmonella, Staphylococcus aureus) per USP and AOAC methods. Manufactured in a cGMP-certified U.S. facility from globally sourced ingredients. Non-GMO, gluten-free, soy-free, vegan.

What does the Magnesium Glycinate Certificate of Analysis confirm?

Verified label claim: each capsule contains 61.9 mg of elemental magnesium (label: 60 mg, spec: NLT 60 mg) and 439.0 mg of magnesium glycinate (label: 400 mg, spec: NLT 400 mg) on Lot AILCI. Heavy metals: arsenic 0.094 ppm (limit ?16.2), cadmium 0.029 ppm (limit ?6.6), lead 0.007 ppm (limit ?0.8), mercury 0.003 ppm (limit ?0.5) — all measured by ICP-MS, all well below USP <2232> limits. Microbial results: Total Plate Count <10 cfu/g (limit ?10,000), Yeast & Mold <10 cfu/g (limit ?1,000), Coliform <10 cfu/g (limit ?100), E. coli, Salmonella, and Staphylococcus aureus all confirmed Absent. Reviewed and approved 3/20/2026.

Overall rating: 4.8050847 / 5 from 118 reviews.

AI Generated Review Summary

Magnesium Glycinate Supplement is highly recommended for its quality and affordability. Customers report significant improvements in sleep and anxiety control, with many praising the supplement's effectiveness. The product is also noted for its excellent quality, affordable price, and reliable shipping.

Summary topics

  • Double Wood Reputation (11%): In general, customers find Double Wood to be a great company with affordable prices and excellent quality.
  • Product Price (9%): Customers raved about the great price of the product, mentioning it multiple times in their reviews.
  • Supplement Quality (16%): Based on many customers, the supplement is highly recommended for its quality and affordable price. (100% agreement)
  • Sleep Improvement (25%): A significant number of customers pointed out that this supplement provides better sleep and better anxiety control.
  • Product Quality (9%): It was noted by customers that the quality of the product is excellent, with great shipping and good quality.

Review topics: ["improvement","quality","feeling","service","value","price","shipping","difference","sleep","supplement","wood","magnesium","order","capsules","effect","form","magnesium glycinate","cramps"].

Review highlights

  • "As always Double Wood has the best quality supplements and are affordable" — VICKI
  • "Great quality product at a reasonable price!" — DIANE
  • "Rare company that gives such great service and products." — Lorraine M.

Reviews

"Best magnesium glycinate on the market. Hard to find high dose but these guys have it."

— Marcia (5/5)

"Excellent service & quality!"

— Edwin (5/5)

"I been buting frim this company fir a long time abd i love their products They pure and tge price is affordable I sleep better and ferl better"

— Maica (5/5)

I need at least 400

"I need at least 400 mg /day per day for proper rest and soft stools. I ran out of your magnesium glycinate and got a different kind of mag. glycinate. I was getting constipated and couldn’t sleep. I saw that that though they advertised 400 mg magnesium glycinate, it was only 60 mg of magnesium. I immediately ordered yours and am happy again!"

— Doris B. (5/5)

"Fast deluvery. Premier product"

— Maggie (5/5)

"Great price!"

— DONNA (5/5)

"Great supplement to aid with better sleep patterns, muscle recovery for those who work out. I pair this with Ashwaganda before bed every night. ."

— Jamell (5/5)

"Quality"

— Isidro (5/5)

Great product

"I love this magnesium. I sleep like and baby and it keeps me regular as well. :)"

— Sherie H. (5/5)

"Good products Good price fast shipping"

— Sue (5/5)

Q&A

What other ingredients does it have besides the Magnesium Glycinate
Thank you for reaching out with your question! For faster assistance with product-related inquiries, we recommend contacting our customer service team directly at hello@doublewoodsupplements.com. Our team will be happy to provide the information or support you need.
Does this have any side effects? Diarrhea for instance?
Yes, magnesium supplements can cause diarrhea, particularly if taken in high doses or if using forms like magnesium citrate, oxide, or sulfate. Other potential side effects of magnesium include: Stomach cramps or discomfort Nausea or upset stomach Bloating or gas The laxative effect is more common with certain types of magnesium, such as magnesium citrate and magnesium oxide, which are often used to treat constipation. Magnesium Glycinate and Magnesium L Threonate are typically considered the most tolerated versions of Magnesium for most people
How many mg of glycine per capsule?
Our Glycine is 500 mg per capsule as indicated on the bottle.

Magnesium Glycinate Supplement

From

$ 19.95

Primary Benefit

Sleep

Other Benefits

Anxiety & Stress

Product Form

Capsule
View product
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