Magnesium Bisglycinate

Magnesium Bisglycinate is built to do one job exceptionally well: help your nervous system power down.

Many magnesium supplements pass through the body largely unused but Momentous Magnesium Bisglycinate is chelated to the amino acid glycine, which shuttles it through dedicated absorption channels for meaningfully better uptake, without the GI discomfort common to other forms like citrate or oxide

• Promotes deep, restorative sleep by supporting GABA synthesis and calming neuromuscular excitability
• Eases everyday stress and tension — works day or night, not just at bedtime
• Non-habit forming & gentle enough for nightly use and non-laxative at the recommended dose
• 200mg of elemental magnesium helps close the gap between dietary intake and the recommended daily amount
  
  

Magnesium is a crucial mineral for over 300 bodily processes providing a foundation that makes calm, physical ease, and restorative sleep possible.

Magnesium is essential to over 300 enzymatic reactions in the body, but on its own it's unstable and poorly absorbed — it has to be bound to another compound to be usable. 

In Magnesium Bisglycinate, magnesium is chelated to two molecules of glycine, an amino acid that also acts as an inhibitory neurotransmitter in the central nervous system.

That pairing does two things at once: the glycine bond lets magnesium ride along dedicated amino acid transport channels, improving absorption over inorganic forms like oxide or citrate, while glycine independently supports GABA signaling — the body's primary calming pathway. 

The result is a magnesium form that's efficiently absorbed and purpose-built to support nervous system calm, sleep onset, and muscle relaxation.

• Take 2 capsules 30–60 minutes before bed for sleep support, or any time of day when you need to take the edge off stress
• Pairs well with Magtein® (magnesium L-threonate) for full-spectrum coverage — Magtein in the morning supports the brain, Bisglycinate in the evening calms the body 
• Best taken consistently, every night. The calming effect builds with regular use.
  
  

Because Bisglycinate is gentle on the gut, it's one of the few magnesium forms suited to nightly, indefinite use. Take it as a steady nightly habit rather than an occasional fix.

200mg Magnesium (as Magnesium Bisglycinate)

Other Ingredients:

Hypromellose (Capsule), Silica, Magnesium Stearate, Microcrystalline Cellulose

Sourced to the same standard as every Momentous ingredient: NSF Certified for Sport®, free of unnecessary fillers and artificial colors. No added sugar, no proprietary blends — just the chelated form your body is built to use.

Some people notice improvements in muscle tension, cramps, or sleep quality within the first 1–2 weeks.* More sustained effects, including consistent sleep quality, reduced stress reactivity, and optimized mineral status, build over 4–8 weeks of daily use.*

For general magnesium repletion, stress support, muscle function, or recovery, Magnesium Bisglycinate can be taken at any time of day.