Many Happy Customers

Boost Your Day, Calm Your Night.

A complete system to meet your daily magnesium needs. Are you low in magnesium? Take the quiz to find out!

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Increase energy & support metabolism

Improve sleep & reduce stress

Optimize heart health & prevent high blood pressure

Boost cognitive function & mental clarity

Benefits of Magnesium

Magnesium supports over 600 vital processes in the human body.

Energy Production

Sleep & Relaxation

Heart Health

Cognitive Function

Mood Regulation

Mental health

Bone Health

Blood Sugar Regulation

Magnesium:
The Miracle Mineral

Magnesium, often called the "miracle mineral," plays a crucial role in over 600 functions in the human body. It supports energy production, cognitive function, muscle and heart health, stress relief, and sleep. Your body needs magnesium daily to function optimally.
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Boost Energy Production

By stimulating ATP, the body's primary energy molecule, magnesium is necessary to turn food into energy.

ATP, the chemical that stores and distributes energy in cells and powers all biological processes, needs magnesium to be activated.

Supports Metabolism: It is essential for the metabolism of proteins, lipids, and carbs into useful energy.

Reduces Fatigue: By maximizing energy production routes, magnesium helps minimize feelings of exhaustion and fatigue.

Magnesium will give your day the energy it needs.

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Sleep and Relaxation

Magnesium facilitates a state of relaxation and primes the body for a deep, restful sleep by calming the nervous system and regulating neurotransmitters.

Magnesium calms the nervous system and aids in the regulation of neurotransmitters, promoting relaxation and lowers stress levels.

Magnesium helps reduce stress, cramps, and muscle tightness which promotes a deeper, more restful sleep.

Magnesium supports natural melatonin production, which helps you fall asleep faster and stay asleep longer.

Magnesium will give your night the sleep and rest it needs.

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Heart and Bone Health

By facilitating the absorption of calcium, magnesium helps to maintain a regular heartbeat, promote cardiovascular health, and increase bone density.

Magnesium helps to maintain a steady heartbeat, and prevents irregular heartbeats by balancing calcium and potassium levels.

It promotes healthy blood pressure, eases blood vessel tension, and lessens cardiac strain.

Plays a vital function in bone density and strength, helping to avoid osteoporosis. It necessary for the effective absorption of calcium.

Magnesium will keep your heart and bones healthy.

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Premium, High-Quality Ingredients

Nesi is a premium magnesium supplement brand sourced from the highest quality ingredients for maximum bioavailability. Our two formulas, Boost for your mornings, and Calm for your evenings, are designed to energize your days, and relax your nights. Boost, our proprietary morning formula also includes Brainberry®, a powerful antioxidant that enhances cognitive function, giving you an extra boost to start your day strong.

 

Ingredient list: Boost (morning formula): DiMagenesium Malate, Magnesium Bisglycinate Chelate, SolarSea® AC (magnesium + trace minerals), and Brainberry® (for cognitive support). Calm (evening formula): Magnesium Pidolate, Magnesium Bisglycinate Chelate, and SolarSea® AC (magnesium + trace minerals).

What People Are Saying

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Nesi Boost & Calm
Nesi Boost & Calm
Nesi Boost & Calm
Nesi Boost & Calm
Nesi Boost & Calm
Nesi Boost & Calm
Nesi Boost & Calm

Nesi Boost & Calm

Many Happy Customers

A complete magnesium system for morning and evenings.

$109.00

Science-Backed Formulas

Satisfaction Guaranteed

Dedicated Customer Support

How to Enjoy

Take 2 Nesi Boost capsules in the morning to kickstart your day, and maximize energy levels. Take 2 Nesi Calm in the evening, to wind down and activate optimal relaxation and sleep. 

Ingredients  

Boost (morning formula): DiMagenesium Malate, Magnesium Bisglycinate Chelate, SolarSea® AC (magnesium + trace minerals), and Brainberry® (for cognitive support). Calm (evening formula): Magnesium Pidolate, Magnesium Bisglycinate Chelate, and SolarSea® AC (magnesium + trace minerals).

Shipping

We offer fast and reliable shipping throughout the USA.

Simple and effective magnesium product

“I’ve been taking magnesium regularly, but mostly at night, and realized recently I wasn’t getting enough daily! Nesi simplifies magnesium consumption, so I can take 2 capsules in the morning and 2 capsules in the evening to get what I need. I love it!” 

Debbie B.

Verified Buyer

At Nesi, we are committed to providing the highest quality ingredients, with the highest bioavailability. Not all magnesium is built the same. Bioavailability is critical to maximizing the amount of magnesium that is delivered to your cells. We built Nesi because we wanted a high-quality and premium supplement that works better than the rest. Nesi is designed to ensure you get the necessary daily amount of magnesium for a foundation of optimal health. Feel better, perform better, live better.

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High Bioavailability

Brainberry® for Cognitive Function

Easy on Your Stomach

Premium, High-Quality Ingredients

Ethically Sourced and Made in the USA

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Our Story

A Passion-Driven 
Health Journey 

Nesi was born out of our own personal health journeys. We are a team who is dedicated and passionate about our health, and committed to becoming just a little bit healthier and better each day. When we discovered how critically important magnesium is to overall health we immediately started taking it regularly. We then realized that magnesium is a rather ambiguous product category, with so many different types to choose from, and so many different brands.

 

Our mission is simple: to simplify magnesium supplementation into one complete product, for morning and evening consumption. Made from the highest quality ingredients, with high bioavailability, we wanted to build a product that we ourselves wanted to take. We built this for us, and for people like us, those who want to be their healthiest and feel their best. 

Matt & Sam Bell - Nesi Founders

The perfect start and end to my day

“I take Boost in the morning and Calm at night—it’s changed my whole routine.”

-Emily R.

Verified Customer

Sleeping better than I have in years

“Nesi Calm helps me wind down naturally and sleep through the night. Total game-changer.”

-Jason T.

Verified Customer

My energy feels steady all day

“No more crashes or afternoon slumps. Boost helps me stay focused and energized.”

-Michelle L.

Verified Customer

Finally—magnesium that actually works

“I’ve tried other magnesium supplements. Nesi is the only one that made a noticeable difference.”

-Kevin P.

Verified Customer

Part of my nightly wind-down

“I look forward to Nesi Calm every night. It helps me relax and feel grounded before bed.”

-Sophie C.

Verified Customer

Goodbye brain fog

“Within a week of taking Nesi Boost, my focus and mental clarity improved noticeably.”

-Jenna F.

Verified Customer

Love the clean ingredients

“I’m really intentional about what I put in my body. Nesi checks every box—clean, effective, simple.”

-Derek W.

Verified Customer

It really helps my stress levels

“I feel less reactive and more balanced during the day. Magnesium makes such a difference.”

-Laura B.

Verified Customer

My new daily non-negotiable

“Nesi has become part of my daily rhythm—Boost with my coffee, Calm before bed.”

-Chris M.

Verified Customer

Exactly what my routine was missing

“Nesi makes it easy to stay consistent. I feel more energized, less stressed, and finally sleeping well.”

-Amanda G.

Verified Customer
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Ready To Become The Healthiest Version of Yourself? 

Start taking Nesi magnesium daily and watch your energy, sleep, mood, and overall health improve.
 

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