Jigsaw MagSRT Supplement Facts

Magnesium w/SRT®

  • Relieves stiff muscles*
  • Boosts energy and mood*
  • The only time-release magnesium with a peer-reviewed clinical trial.
Formula
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$49.97
  • 15% off first order, 5% off on recurring orders.
  • FREE shipping (contiguous US only).
  • No commitment, cancel or change anytime.
Ships every 1 month
$42.47
$49.97
  • 15% off first order, 5% off on recurring orders.
  • FREE shipping (contiguous US only).
  • No commitment, cancel or change anytime.
Ships every 1 month
$25.47
$29.97
$49.97
$55.00

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Supplement Facts
Jigsaw MagSRT Supplement Facts

Supplement Facts

60 servings per container
Serving size 4 tablets
Amount Per Serving % DV††
  • Vitamin B6 (as Pyridoxal 5-Phosphate) 5mg 294% daily value
    • Folate (as Quatrefolic® 5-Methyl Tetrahydrofolic Acid Glucosamine Salt) 200 mcg 50% daily value
  • Vitamin B12 (as MecobalActive® Methylcobalamin) 6 mcg 250% daily value
  • Magnesium (as Dimagnesium Malate) 500 mg 119% daily value
  • Malic Acid (as Dimagnesium Malate) 1,436 mg † daily value

††The % Daily Value (DV) is based on a 2,000 calorie diet.

†Daily Value not established.

**DFE (Dietary Folate Equivalent) is the total amount of folate per serving.

Other ingredients: Microcrystalline Cellulose, Hydroxypropyl Cellulose, Croscarmellose Sodium & Hydroxypropyl Methylcellulose (Plantbased insoluble fibers used to achieve Sustained Release Technology*); L-Leucine (Essential amino acid used as lubricant), Silicon Dioxide (Anti-caking agent), Clear Coating (Hydroxypropyl Methylcellulose and Sunflower oil) and Micro Wax (for easier swallowing).

Made with love by: Jigsaw Health, LLC. 9035 E Pima Center Pkwy, Suite 4, Scottsdale, AZ 85258

Suggested use: As a nutritional supplement, take 4 tablets per day with food. Divide doses if desired, or use as directed by your healthcare professional.

Active Ingredients:

Magnesium (as dimagnesium malate), Vitamin B6 (as pyridoxal-5-phosphate), Folate (as Quatrefolic® 5MTHF), Vitamin B12 (as Methylcobalamin), Malic Acid (as dimagnesium malate).

The malate form of magnesium is 85% absorbable.

Suggested Use:

As dietary supplement, take 4 tablets per day with food. Divide doses if desired, or as directed by your health care provider.

Please Note:

If you are currently being treated for kidney disease, please consult your healthcare professional before taking any magnesium supplement as magnesium toxicity can occur in those with kidney disease.

Science & 3rd-Party Testing

Clinically Tested

We put MagSRT® to the test in the Scottsdale Magnesium Study, a placebo-controlled clinical trial published in the Journal of the American College of Nutrition. The results? Participants taking MagSRT® experienced a 22% increase in serum Magnesium, while a group continuing supplementation for 90 days saw a 30% increase in red blood cell Magnesium and a 63% reduction in Magnesium deficiency symptom scores. These findings support the effectiveness of our sustained-release Magnesium technology.*

Read the published study

3rd-Party Testing

At Jigsaw Health, quality and safety come first. Every batch of our supplements goes through a rigorous three-step testing process to verify identity, purity, and potency. We manufacture in FDA-registered, cGMP-compliant facilities and conduct independent 3rd-party laboratory testing to validate that our products meet label claims. We also publish our 3rd-party test results on our website, because you deserve to know exactly what's in your supplements.

Certifications

Manufactured in GMP and FDA registered facilities in the U.S., and thoroughly tested for heavy metals and contaminants.

How to Use

As a nutritional supplement, take 4 tablets per day with food. Divide doses if desired, or use as directed by your healthcare professional.

Why Jigsaw?

Feeling good is the point. The details make the difference.

Purposefully formulated. From nutrient forms to delivery methods, we obsess over the details that make a supplement worth taking.

Science in every formula. Our formulas are backed by science and built with purpose. We choose ingredients for their quality and effectiveness... never cheap, ineffective forms just to cut costs.

Quality beyond the label. 3rd-party testing and a dedicated quality team help ensure what goes into your supplements meets our standards.

Real people. Real help. Questions about a product or your order? Our Customer Happiness Team is here for you. Connect with a real person who cares, and skip the frustration.

Call a human: 888-352-5050 · Live chat · Email us: help@jigsawhealth.com 

benefits

More energy for life. More moments feeling good.

Magnesium helps your body make energy, relax muscles, and support a balanced nervous system. MagSRT delivers it gradually over 8 hours to support your daily routine.*

  • Energy

    Keep up with your day.

    Supports cellular energy production to help you feel ready for what’s ahead. Released over 8 hours, from your morning walk to your afternoon to-do list.*

  • Muscle & cramp relief

    Relax your legs, muscles & brain

    Supports healthy, relaxed muscle tone and function, the reason so many of our reviews mention night-time leg cramps.*

  • Stress response

    A calmer response to stress

    Supports a balanced response to stress and healthy blood pressure levels already within the normal range.*

  • Sleep

    Wind down, and stay down

    Magnesium supports the relaxation pathways your body uses to settle into deep, restful sleep, and the time-release form keeps working through the night.*

Energy

Keep up with your day.

Supports cellular energy production to help you feel ready for what’s ahead. Released over 8 hours, from your morning walk to your afternoon to-do list.*

Muscle & cramp relief

Relax your legs, muscles & brain

Supports healthy, relaxed muscle tone and function, the reason so many of our reviews mention night-time leg cramps.*

Stress response

A calmer response to stress

Supports a balanced response to stress and healthy blood pressure levels already within the normal range.*

Sleep

Wind down, and stay down

Magnesium supports the relaxation pathways your body uses to settle into deep, restful sleep, and the time-release form keeps working through the night.*

Why MagSRT®

Why MagSRT® over any other magnesium

  • 8 hours of absorption

    Our Proprietary Sustained Release Technology (SRT) spreads the release of magnesium out over 8 hours, allowing your body to actually absorb it while avoiding GI upset.*

  • The only one with a clinical trial

    MagSRT is the only time-release magnesium supplement with a peer-reviewed clinical trial published in the Journal of the American College of Nutrition.

  • Highly absorbable form

    Utilizes Albion® Dimagnesium Malate to deliver 500mg of elemental magnesium. We never use the cheap forms of magnesium that are poorly absorbed.*

  • Family-owned since 2005

    Founded by Pat Sullivan Sr. and Patrick Sullivan Jr. in April 2005. Still family-run, still triple-testing every batch, still real people answering the phone.

Clinical evidence

We ran the study. Then we published it.

MagSRT® by Jigsaw Health was evaluated in the Scottsdale Magnesium Study (SMS), a human clinical trial of 91 participants.The study measured blood serum magnesium levels, red blood cell magnesium levels, and magnesium deficiency symptoms:

  • +22%

    in blood serum magnesium levels.*

  • +30%

    in red blood cell levels.*

  • -63%

    in magnesium deficiency symptoms.*

Most supplement companies cite someone else’s research. We funded our own. The Scottsdale Magnesium Study was a placebo-controlled human clinical trial of 91 participants that measured serum magnesium, red blood cell (RBC) magnesium, and magnesium deficiency symptoms, and it was published in the peer-reviewed Journal of the American College of Nutrition. RBC magnesium matters here because it reflects what actually made it into your cells, not just what’s floating in your bloodstream.

Published in the Journal of the American College of Nutrition

Read the published study

Compare

How MagSRT® stacks up

How MagSRT® stacks up
MagSRT® SLOW-MAG® MAG-TAB® SR
Magnesium per serving 500 mg 143 mg 168 mg
Cost per 500mg daily $0.83 $2.08 $2.04
Magnesium form Dimagnesium Malate (Albion®) Chloride L-lactate dihydrate
B-vitamin cofactors YesB-FREE option No No
Peer-reviewed clinical trial Yes No No
3rd-party verified Yes No No
Time-released Yes8 hours NoPartial Yes
Doses to reach 500mg 4 tablets ~11 tablets ~9 caplets
90-day money-back guarantee Yes No No

Competitor figures checked against current labels before launch, then quarterly.

As featured in

  • Journal of the American College of Nutrition
  • Nutraceuticals World
  • Food Business Review — 2026 Nutritional Supplement Company of the Year
  • Wellness Mama
  • ConsumerLab.com
  • BBB Accredited Business
  • Best of Scottsdale 2022

Support

Frequently Asked Questions

  • Usage

    How long until I notice something?

    Most people notice nothing dramatic in the first few days, and that’s normal. Week 1–2 is where many of our customers first notice a change: falling asleep more easily, waking less.*

    Morning or night?

    Either is fine. Most customers take 2 in the morning and 2 in the afternoon.

  • Science

    What does “SRT” mean?

    MagSRT uses a Proprietary Sustained Release Technology that releases magnesium over roughly eight hours instead of dumping it into your gut at once, making it easier for your body to absorb.*

    Why malic acid?

    Magnesium and malic acid are both used in cellular energy production. MagSRT® uses dimagnesium malate from Albion®, which pairs the two.*

    Why is Vitamin B12 (Methylcobalamin) included?

    Methylcobalamin, the active form of Vitamin B12, is included as a supporting B vitamin to contribute to the effectiveness of Magnesium.*

    Additionally, methylcobalamin is a necessary cofactor for your body's ability to properly methylate. Methylation is a cycle that occurs in your body billions of times every second. It's one of the most important biochemical processes for long-term health and essential for the proper function of almost all of your body's systems.*

    Using the active form of B12 is particularly important because people with chronic conditions are poor methylators -- making it difficult to convert inactive forms into their useful active form.*

    What is Quatrefolic® (Folate, Vitamin B9), and why is it included?

    Quatrefolic® (5-MTHF, or folate) is an active form of Vitamin B-9, folic acid. For many people, it is difficult for the liver to convert folic acid into folate and can lead to a deficiency.

    Folate is an important cofactor to Pyridoxal-5-Phosphate (P5P, Vitamin B6) and beneficial to many bodily functions. Together, these greatly improve Magnesium’s function to support optimal health.*

    Why is Vitamin B6 (Pyridoxal-5-Phosphate) included?

    P5P (Pyridoxal-5-Phosphate), the active form of Vitamin B6, performs over 30 critical enzymatic reactions in the body, including the manufacture of serotonin and dopamine in the brain. The inactive forms of B6 (pyridoxine hydro-chloride, pyridoxal, or pyridoxamine) have to be converted by the liver to the active form (Pyridoxal-5-Phosphate or P5P) the body needs. Individuals with compromised liver function have difficulty making this conversion and consequently may be at risk of a vitamin B6 deficiency.

    P5P works synergistically with Magnesium in many ways. A deficiency in either causes many issues where the body depends on both Magnesium and P5P. It is critical to get both.

    Since Vitamin B6 is already difficult to get and convert into its usable form, we give it to you already in its active P5P form. All the benefits are available immediately after absorption - no trouble converting or waiting.

    PLEASE NOTE: This product does NOT contain Pyridoxamine.

  • Safety

    Will this cause GI upset like other magnesium supplements?

    Instead of the magnesium being dumped into your system all at once, SRT slows down the release of magnesium so it's spread out over 8 hours, which allows your body to absorb the maximum it needs to start feeling your best... avoiding the dreaded digestive discomfort that high doses that most high potency magnesium supplements can cause.*

    How do I know what’s in the bottle is what’s on the label?

    Every batch of our products is triple-tested, and the lab results are posted online for all to see. We believe that what’s on the label is what should be in the bottle, and nothing else. 

  • Orders & Shipping

    What is your return policy?

    Every order is covered by our 90-Day Money-Back Guarantee. Reach out to our Customer Happiness Team: 888-352-5050, Live chat, or Email us at help@jigsawhealth.com 

    How fast will my order ship?

    Orders received BEFORE 3pm ET / 12pm PT on business days will be shipped out the same day. Orders received after that time will be shipped the following business day. Business days are Monday - Friday, excluding holidays.

    Can I cancel or change my subscription?

    Yes, cancel or change anytime.

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