Nesi Boost & Calm

A complete magnesium system for your mornings and evenings.

Science-Backed Formulas

Satisfaction Guaranteed

$109.00

(320)

Free shipping. Sales tax calculated at checkout.

In stock, shipping within 0-1 weekdays

Fast and reliable shipping throughout the USA

About the Formulas

Nesi is comprised of two proprietary magnesium formulas: Boost for morning consumption, and Calm for evening consumption. Together, these two formulas are designed to boost your day by supporting energy production, cognitive function and heart health, and to calm your night by supporting relaxation, and deep, restorative sleep. 

 

Nesi Boost also contains a special ingredient called Brainberry®, which is a natural extract derived from Aronia berries. This compound crosses the blood-brain barrier, enhancing cognitive performance by improving focus, psychomotor speed, and maintaining optimal levels of brain-derived neurotrophic factor (BDNF), which is essential for brain health.

Ingredients

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

 

Calm (evening formula): Magnesium Pidolate, and Magnesium Bisglycinate Chelate, and SolarSea® AC (magnesium + trace minerals).

Shipping

We offer fast and reliable shipping throughout the USA. 

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

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.

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.

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.

What People Are Saying

US

Nesi

THEM

others 

Comparison

High Bioavailability

Brainberry® for Cognitive Function

Easy On Your Stomach

Premium, High-Quality Ingredients

Ethically Sourced and Made in the USA

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

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

Support

FAQ

Terms of Service

Privacy Policy

Copyright © 2026 Yanna Health LLC (DBA Nesi)