Glycinate is the calm one
Magnesium bound to glycine, an amino acid that quiets a racing mind. It's the form people reach for when the goal is sleep, not a bowel movement.*
Chelated · Highly Absorbable
Serni Magnesium Glycinate is the gentle, highly-absorbable form your body craves — for deeper sleep, calmer nights, and zero grogginess. No melatonin hangover. No stomach upset.

Formulated for people who are done being tired
The 3AM problem
You drift off fine. Then 3:07am arrives and your brain files its report — the email, the invoice, the thing you said in 2014. Wired but exhausted.
So you try melatonin, and you wake up under a wet blanket. You try a cheap magnesium off the shelf, and your stomach makes the decision for you by morning.
The mineral wasn't wrong. The form was.

Why glycinate
Most magnesium supplements use the cheap forms that upset your stomach. Serni doesn't.
Magnesium bound to glycine, an amino acid that quiets a racing mind. It's the form people reach for when the goal is sleep, not a bowel movement.*
Chelated magnesium is the form your body actually recognizes and uses — so more of what's on the label ends up where you need it.
No laxative effect like citrate or oxide. Take it nightly without negotiating with your gut.*
Benefits

Magnesium supports the nervous system's shift into rest mode, so your body stops idling in fifth gear and the night stays whole.*

Glycine is a calming amino acid. Paired with magnesium, it takes the edge off the evening wind-down — the kind of calm you can feel before your head hits the pillow.*

Citrate and oxide are cheap for a reason. Chelated glycinate absorbs instead of sitting in your gut, so nightly use stays comfortable.*

Magnesium is an essential mineral, not a sedative. You're replenishing something your body wants, so mornings feel like mornings again.*
60-night money-back guarantee · Free shipping over $35
The honest comparison
| Feature | Serni | Other magnesium | Melatonin |
|---|---|---|---|
| Helps you stay asleep* | |||
| Non-habit forming* | |||
| No morning grogginess* | |||
| Gentle on stomach* | |||
| Highly absorbable | |||
| Calms stress* |
What's inside
No proprietary blends, no filler stack, no melatonin. Just a clinically relevant dose of chelated magnesium glycinate in a vegan capsule.

The nightly ritual
Step 1
About 30 minutes before bed, with water.
Step 2
The wind-down gets easier. The scroll gets boring.*
Step 3
Clear-headed, not groggy. Then do it again tonight.*
Reviews
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Chelated · Highly Absorbable
the sleep & calm mineral
Start Sleeping BetterCancel anytime · Free shipping on subscriptions and orders over $35
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That's how confident we are that the right form of magnesium changes your nights.
Made properly
Made in the USA, third-party tested, formulated for people who are done being tired.
FAQ
One bottle. Three capsules. Sixty nights to decide — with a full refund if it isn't everything you hoped.
Start Sleeping Better60-night money-back guarantee · Free shipping over $35