Restful nights start
with mineral balance.

Quality sleep starts long before your head hits the pillow. Magnesium helps regulate the nervous system, supports relaxation, and promotes the calm state your body needs to fall asleep and stay asleep.

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Gluten Free
Vegan
Non-GMO
GMP Certified
Health By Principle Magnesium Supplement
4
Bioavailable Forms
100
Capsules - 25 day supply
4.9
Customer Rating

Magnesium Supplement

Support For Sleep, Calm, & Muscles

A 4-type magnesium complex designed to support relaxation, muscle recovery, digestion, heart health, and daily nervous system balance.

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4 Forms of Magnesium. One Complete Formula.

Each form of magnesium plays a different role, helping support calm, sleep, muscle recovery, digestion, heart health, and daily energy.
4 Magnesium Type Primary Benefit Best For
GLYCINATE
Calm, relaxation, sleep support
Evening relaxation, stress support, restful sleep
TAURATE
Heart health, cardiovascular support
Supports healthy heart function and overall cardiovascular wellness.
MALATE
Energy, endurance, muscle function
Daytime energy, active lifestyles, muscle function
CITRATE
Absorption, digestion, regularity
Gentle digestive support and magnesium absorption

Magnesium isn't just a relaxation mineral.

Power the systems your body depends on every day, from cellular energy and nerve signaling to muscle function and cardiovascular support.
01

Supports calming pathways

Magnesium is involved in GABA activity, the nervous system's primary inhibitory signal, part of what helps the body settle into a restful state.

02

ATP activation

Magnesium helps activate ATP, the energy your cells use to power nerve signaling, muscle function, and cognitive performance.

03

Nerve channel regulation

Magnesium helps regulate calcium activity in neurons, supporting stable nerve signaling and a calmer nervous system.

04

Muscle & vascular support

Healthy magnesium levels help support relaxed muscles, blood vessel function, and overall cardiovascular wellness.

Real routines. Real results.

Quality Magnesium Support Customers Can Feel

No artificial fillers Science-informed formula 100 Capsules Free shipping $50+

A Magnesium Formula Designed for Restful Nights

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Frequently asked questions.

Why four forms instead of one?

Different forms of magnesium are absorbed and utilized by different tissues. A single form, may support the nervous system without fully addressing cellular energy or cardiovascular pathways. The four-form blend ensures broader coverage across the body's needs.

How long before I notice a difference?

Magnesium replenishment is not immediate. Most people who follow consistent protocol-aligned habits, correct timing, food pairings, adequate salt and hydration, report noticeable differences within 2–6 weeks of consistent use.

Does it interact with other supplements?

Iron competes with magnesium for receptors, so avoid taking them together. Calcium supplementation (pills) should also be separated from magnesium. Taking magnesium with food that naturally contains calcium is the correct approach, this supports absorption rather than competition.

Foundational support,
done right.

Whether you're looking for calmer evenings, deeper sleep, muscle recovery, or mineral support. Complete Magnesium is a simple daily step toward feeling more balanced.

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Health By Principle Magnesium Supplement bottle