Proprietary Sustained Release Technology (w/SRT®)
Supports healthy muscle tone, overall energy and heart health 
Promotes restful sleep
Super-absorbable, premium organic form – dimagnesium malate from Albion Labs
 
What Is "SRT" And Why Is It So Important?
The "SRT" in Jigsaw Magnesium w/SRT® stands for Sustained Release Technology, and it's the major difference that gives this product its superior effectiveness.
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 of most magnesium supplements can cause.
 
Why Do I Need A High Dose Of Magnesium? 
If you want to promote healthy and relaxed muscle tone and function, as well as support joint health, digestive health, healthy sleep cycles, and overall energy, then you must take a high enough dose of magnesium to compensate for the fact that our typical modern daily diet tends to run low on this vital mineral.
 
What Can Magnesium Help Me With?
Promote healthy relaxed muscle tone and function
Promote athletic recovery
Support steady energy production. Promote healthy, restful sleep
Support a balanced response to stress
Maintain healthy blood pressure levels within normal range
Maintain healthy blood sugar/glucose levels within normal limits
Promote regularity and healthy digestion
Support the body's ability to properly dissolve and utilize calcium in joints, muscles, and arteries
Support respiratory and cardiovascular health
Support healthy hormonal balance—especially in connection with the female cycle
Support overall bone health
 
What Are The Signs That The Body is Craving Magnesium?
When the body's magnesium stores are taxed—a common occurrence considering our magnesium-poor diets—the body provides some clear hints. Body aches, constipation, tension headaches, reduced energy, interrupted sleep, and many other indicators are the body's way of saying it wants more magnesium.
 
Why Did You Make a B-Free Version of Jigsaw Magnesium w/SRT?
Jigsaw Magnesium w/SRT has become a very popular magnesium supplement.  But a segment of customers requested the ability to supplement their B vitamins (B6, B12, and Folate) separately from their magnesium. 
 
Why Does The B-Free Formula Cost The Same As "Regular" Jigsaw Magnesium w/SRT?
The reality is that the B-Free formula is actually more expensive to produce. "How could that possibly be?" The answer is simple -- it comes down to economies of scale. Jigsaw produce tens of millions of "regular" Mag SRT tablets per year.  As of the B-Free formula launch in 2016, they produced a relatively small batch (about 1,000 bottles) to ensure that there is actually is a market for this product.  
Because Jigsaw use such a tiny amount of B6, B12, and Folate in regular Mag SRT, those three ingredients only accounts for about 20 cents of cost per bottle.  Therefore, "regular" Magnesium w/SRT and B-Free Magnesium w/SRT are likely to always have the same retail price, with 4 tablets costing about 67 cents per day.
 
Jigsaw Magnesium w/SRT® (B-Free) Contains:
No artificial colors or dyes
No yeast
No preservatives
No carnauba wax
Vegan safe