Bone & Joint · Sleep · Sports Performance · Stress & Calm

Magnesium Glycinate – 120 servings

Name: Magnesium Glycinate
Rating: 4.6 (35 reviews)

✓90-DAY MONEY-BACK GUARANTEE

$25.99$0.21 PER SERVING

Magnesium bound to two glycine molecules — a true chelate that travels the amino-acid absorption pathways. Each capsule carries 120 mg of elemental magnesium, and the dose flexes from one to four so you can reach the amount you want. Glycine is calming in its own right, which is why this is the evening form.*

Supports restful sleep

Supports muscle relaxation

Supports a steadier daily calm

Supports cellular energy

Supports bone health

A true chelate

THIRD-PARTY TESTEDcGMP FACILITYVEGAN CAPSULENON-GMOCOA PER LOTGLUTEN-FREE

How to take

Take 1 capsule 1 to 4 times daily with food. Many people take it in the evening, 30–60 minutes before bed.. Consistency matters more than timing — pick a moment you'll remember daily.

Consult a healthcare professional before use if pregnant, nursing, taking medication, or managing a medical condition. Keep out of reach of children.

Quality & testing

Manufactured in the USA in a cGMP-certified facility. Raw materials are tested and qualified before use, and every finished batch is verified by an independent lab for identity, potency, heavy metals, and microbials. Results publish on this page per lot.

Shipping & subscription

Subscribe at any frequency — every month, every 2 months or every 3 months — and save 10%. Subscribe to a second product and every subscription goes to 20%. Free shipping on subscriptions, and you can pause, skip or cancel anytime from your account — no phone calls, no hoops.

What it supports

Supports restful sleep

Magnesium supports the calming pathways the body uses to wind down, and the glycine it is bound to is itself a relaxing amino acid — which is why this is the form people take after dark.

Supports muscle relaxation

Supports normal muscle contraction and relaxation and healthy nerve-to-muscle signaling, easing the tightness that builds through a long day on your feet or under load.

Supports a steadier daily calm

Magnesium supports the nervous system's ability to settle. Most people describe it not as sedation but as a lower baseline.

Supports cellular energy

Magnesium is a required cofactor in the enzymes that turn food into ATP — the actual currency your body spends on everything it does.

Supports bone health

Around 60% of the body's magnesium is held in bone, where it works alongside calcium and vitamin D to support the structure underneath everything.

A true chelate

Magnesium held by two glycine molecules, travelling amino-acid pathways intact — a form chosen for tolerability as much as absorption.

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

The form decides what it is for.

Magnesium bisglycinate chelate — 120 mg elemental per capsule

	Magnesium Bisglycinate	Magnesium Citrate	Magnesium Oxide
Chelated to glycine	●	—	—
Calming glycine cofactor	●	—	—
Elemental amount disclosed per capsule	●	Varies	Varies
Flexible one-to-four capsule dosing	●	Varies	Varies
COA published every lot	●	—	—

GENERAL FORM COMPARISON — INDIVIDUAL PRODUCTS VARY BY BRAND

What's happening
while you wait.

*INDIVIDUAL RESULTS VARY. THESE STATEMENTS HAVE NOT BEEN EVALUATED BY THE FDA.

Inside the formula

Magnesium bisglycinate chelate — 120 mg elemental per capsule

A chelate is a mineral wrapped and held by an amino acid, and bisglycinate is magnesium held by two molecules of glycine. That structure is the point: it travels the amino-acid absorption pathways intact rather than breaking apart on the way, which is what makes a chelate both absorbable and easy to keep taking. Glycine is not a passenger, either. It is a calming amino acid in its own right, which is why bisglycinate has become the form people reach for after dark. One capsule carries 120 mg of elemental magnesium, and the dose flexes from one to four capsules as your needs change.

CUSTOMER REVIEWS

4.6 /5 ★

Based on 35 reviews

91%

Would recommend this supplement

Customers say

✦ Summarised from customer reviews.

Customers most often describe falling asleep more easily and staying asleep through the night, with many noting they wake up rested rather than groggy. Gentleness on digestion comes up repeatedly — several mention switching from citrate or oxide after stomach trouble and having no issues here. Reduced nighttime leg cramps, calf tightness and shoulder tension are the other recurring themes, usually noticed around the two-to-four week mark. A few found the capsules larger than expected, and a small number did not notice a change.

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Frequently asked
questions

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

Trust should be verifiable. Every batch we produce is tested by an independent laboratory, and the certificate of analysis for your exact lot is published on this page — potency, heavy metals, microbials. Testing begins the moment a raw material arrives, continues through production, and no batch is released until every result clears. The label is a claim. The COA is the proof.

How do you choose your ingredients and doses?

We formulate from peer-reviewed clinical research and dose to match it. We select the highest-grade material available for each ingredient, in the form the body absorbs best, and where a patented or branded form is the one that has actually been studied, that is the one we use. Every active appears at its exact amount, with no proprietary blends and nothing added that doesn't need to be there.

Where are CoreLabs supplements made?

In our own cGMP-certified facility in California's Central Valley. Manufacturing in-house means quality is our responsibility at every step rather than a supplier's promise. Raw materials are purchased through established US suppliers who import and qualify them, and every material is tested against our own specification before it enters production — wherever it originated.

Why are CoreLabs supplements more expensive?

Because of what goes in. We buy the highest grade of each raw material, in the most absorbable form, and we work with the branded and patented ingredient houses whose material the clinical research was actually run on — names like Lonza, Albion, RIBUS, Sabinsa and Indena. Wherever possible those materials are made domestically. Our capsules are titanium-dioxide free. Then it is made in our own facility and third-party tested batch by batch. Every one of those choices costs more than the alternative, and the price reflects it. Anyone can claim quality — we publish ours.

Why bisglycinate rather than another form?

Because of how it is built. Bisglycinate is a true chelate — magnesium held by two glycine molecules — so it travels the amino-acid absorption pathways intact. It is a form chosen for daily use, and glycine itself is calming, which makes it the natural evening choice.

How many capsules should I take?

One capsule provides 120 mg of elemental magnesium. Much of the sleep and relaxation research used daily amounts in the 200–400 mg range, so people aiming for that take two or three. Start with one in the evening and adjust from there, up to four daily with food.

When should I take it?

With food. Many people take it in the evening, 30–60 minutes before bed, though it works at any time of day.

Is it gentle enough to take every night?

A glycine chelate is chosen for tolerability as much as for absorption, which is what makes nightly use practical. Taking it with food helps.