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Jigsaw Magnesium w/SRT®

Support Better Sleep, Energy & Muscle Function*

✓ Promote Energy
✓ Support Sleep & Relaxation
✓ Relax your Legs, Muscles, & Brain
✓ The only time-release magnesium with a peer-reviewed clinical trial.

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Jigsaw Magnesium w/SRT®

Support Better Sleep, Energy & Muscle Function*

31k+ sold globally in last 90 days

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  • Most customers feel a difference within 30 days & subscribers never run out.
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$49.97
$49.97
  • Most customers feel a difference within 30 days & subscribers never run out.
  • FREE Shipping (contiguous US only).
  • No commitment, cancel or change anytime.
 Ships every 1 month
$49.97
$49.97
  • No Free Shipping
  • No Discount
  • No Free Gift

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4.7 stars | 9,287 reviews

$55.00

$49.97

$55.00

$49.97

31k+ sold globally in last 90 days

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Our Quality Promise

We deliver only the highest quality nutritional supplements. Every batch of our products is triple-tested, and the 3rd party 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.

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MagSRT® is the only time-release magnesium supplement with a peer-reviewed clinical trial.

MagSRT® by Jigsaw Health was evaluated in the Scottsdale Magnesium Study (SMS), a placebo-controlled, human clinical trial of 91 participants. The study measured Serum Magnesium, Red Blood Cell (RBC) Magnesium, and Magnesium Deficiency symptoms. The results are published in the peer-reviewed Journal of American College of Nutrition (JACN).

Read more about the Scottsdale Magnesium Study findings...

MagSRT® is better.

  • Utilizes the highly absorbable Albion® DiMagnesium Malate.*
  • Includes the active forms of B Vitamin Cofactors (B6, B9 and B12) to enhance absorption.*
  • Delivers 500 mg of elemental magnesium per serving.
  • Employs Jigsaw’s proprietary Sustained Release Technology to slow
    the release of Magnesium over 8 hours to maximize absorption and avoid digestive discomfort.*
  • 3rd party label claim verified.
  • ConsumerLab.com Verified
  • 100% Money-Back Guarantee.

What can Jigsaw Magnesium w/SRT® help me with?

  • Supports healthy relaxed muscle tone and function.*
  • Promotes steady energy production.*
  • Promotes restful sleep.*
  • Supports respiratory and cardiovascular health.*
  • Promotes athletic recovery.*
  • Supports a balanced response to stress.*
  • Maintains healthy blood pressure levels within normal range.*
  • Maintains healthy blood sugar/glucose levels within normal limits.*
  • Promotes regularity and healthy digestion.*
  • Supports your body's ability to properly dissolve and utilize calcium in joints, muscles, and arteries.*
  • Supports healthy hormonal balance—especially in connection with the female cycle.*
  • Supports overall bone health.*

See how MagSRT® works

See how MagSRT® works

My patients and I have all tried different brands of magnesium supplements. This product is the only one that has produced great results. After taking a break from magnesium supplementation, my patient developed leg cramps, sleep issues and then some. As soon as she resumed supplementation, all these issues resolved. So many people are magnesium deficient but have no idea. If you need magnesium this is the one you want. This brand of magnesium never produces diarrhea like other brands have done in the past. This is the best magnesium on the market! - Dr. Naja Wah

How does MagSRT compare?

Description

MagSRT®

Slow Mag®

Mag-Tab® SR

Amount of Magnesium per serving

500 mg

143 mg

168 mg

Cost of 500mg per Day

$0.83

$2.08

$2.04

Form of Magnesium Used

Patented DiMagnesium Malate from Albion Labs

chloride

l-lactate dihydrate

Includes B-Vitamin Co-factors

Yes - MagSRT / No - MagSRT (B-Free)

No

No

Clinically Tested

Yes

No

No

3rd Party Label Claim Verified

Yes

No

No

Supplement Facts

Jigsaw MagSRT Supplement Facts Selector Image 1 - click to open supplement facts modal.
MagSRT B-Free Supplement Facts Selector Image 1 - click to open supplement facts modal.

Support Better Sleep, Energy & Muscle Function*

Support Better Sleep, Energy & Muscle Function*

Shop Now Jigsaw Magnesium w/SRT®

Thanks for all
the
5-star
reviews!

As of January 2026, Jigsaw has
20K+
5-star reviews and an
average rating of 4.6.

Monthly Five-Star Reviews from July 2024 to January 2026
Month Five-Star Reviews
July 2024 16484
January 2025 17390
July 2025 18202
January 2026 20071

90-Day, No-Hassle, Money Back Guarantee

We love our products and we believe you will too. However, if you are not completely satisfied, please contact us within 90 days and we will gladly refund 100% of your purchase.

Jigsaw Health 90-Day Money Back Guarentee

References

  1. The human "magnesome": detecting magnesium binding sites on human proteins. Piovesan D1, Profiti G, Martelli PL, Casadio R.
  2. https://www.healthline.com/nutrition/10-proven-magnesium-benefits
  3. MAGNIFICENT MAGNESIUM, page 129
  4. The effect of magnesium supplementation on primary insomnia in elderly: A double-blind placebo-controlled clinical trialBehnood Abbasi, Masud Kimiagar, Khosro Sadeghniiat, Minoo M. Shirazi, Mehdi Hedayati, Bahram RashidkhaniJ Res Med Sci. 2012 Dec; 17(12): 1161–1169.
  5. Sleep. 1998 Aug 1;21(5):501-5.Magnesium therapy for periodic leg movements-related insomnia and restless legs syndrome: an open pilot study.Hornyak M1, Voderholzer U, Hohagen F, Berger M, Riemann D.
  6. https://www.thesleepdoctor.com/2018/06/19/understanding-gaba/
  7. Page 8, Magnesium Bisglycinate as safe form for mineral supplementation in human nutrition, OM & Ernahrung, 2013
  8. https://jwst.nasa.gov/nirspec.html
  9. Healthline. 29 May 2018
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