FAQ – Nesi Magnesium

Frequently Asked Questions

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Last updated: December 2025

1. Product & Formulas

Why is magnesium so important?

Magnesium is an essential mineral involved in 600+ biochemical processes in the body. It supports energy production, muscle and nerve function, stress regulation, sleep quality, heart health, and cognitive performance. Despite its importance, modern diets and chronic stress leave over half of adults low in magnesium, which can show up as fatigue, poor sleep, anxiety, muscle tension, and brain fog. Magnesium isn’t just a “nice-to-have”, it’s foundational to optimal health.

How much magnesium should I take daily?

The recommended daily intake for adults is generally 310–420 mg per day, depending on age and sex. That said, individual needs vary based on stress levels, physical activity, diet, and overall health. Nesi formulas are designed to help you meet your daily magnesium needs using high-bioavailability forms that your body can actually absorb, without overwhelming your system.

What makes Nesi different from other magnesium supplements?

Nesi formulas are designed with a dual-formula approach. Morning (Boost) for cognitive support and calm energy, Evening (Calm) for relaxation and sleep readiness, using high-bioavailability magnesium forms for maximum absorption.

Are Nesi products third-party tested?

Yes. Every batch undergoes rigorous third-party lab testing to ensure purity, potency, and safety.

Are Nesi supplements clinically supported?

Our ingredients are selected based on scientific evidence for effectiveness and safety. We focus on clinically studied, bioavailable forms of magnesium.

Can I take Nesi with other supplements?

Yes. Nesi is designed to integrate with your wellness routine. If you’re taking prescription medications or have medical conditions, consult your healthcare provider first.

How should I take my Nesi supplements?

Morning Formula (Boost: Take with breakfast to support energy and focus throughout the day. Evening Formula (Calm): Take 1–2 hours before bedtime for optimal relaxation.

Can I open the capsules and mix them with food or drink?

Yes. If you prefer not to swallow capsules, you can mix contents into a drink, smoothie or yogurt. Avoid hot liquids as high heat may affect ingredient potency.

2. Orders & Shipping

How much does shipping cost?

We offer free standard shipping on all U.S. orders over $150. For orders under $150, standard shipping is calculated based on your location and delivery preference. International shipping rates vary by region and are calculated at checkout.

When will my order arrive?

Most orders are processed within 1–2 business days. Once shipped, U.S. deliveries typically arrive within 3–7 business days. International orders can take 10–25 business days depending on location. If you purchase a recurring subscription your order will be processed monthly on the same day of the month you purchased initially.

Can I track my order?

Yes! Once your order ships, you’ll receive a tracking number by email. If you don’t receive one within 48 hours, contact us at support@nesi.health.

Do you ship to PO boxes?

At this time, we do not ship to PO boxes for U.S. or international orders. Please use a physical street address for delivery.

3. Returns & Cancellations

Can I return or cancel my order?

Yes. Returns are accepted within 30 days of delivery. Items must be unused and in original packaging. For cancellations, please contact us before your order has shipped.

How do I start a return?

Email support@nesi.com with your order number and reason for return. We’ll guide you through the simple process.

Can I make changes to my order?

If your order hasn’t shipped yet, we can adjust it! Email us ASAP at support@nesi.health. Once shipped, changes aren’t possible, instead you may return the order once received.

4. Subscriptions

How do Nesi subscriptions work?

First, choose your quantity. Each order is designed to be a 30-day supply for one adult. If you have more than one adult in your household, you should select one unit per person. Subscriptions are highly recommended, as Nesi is designed to be taken daily to help you meet your required daily amounts of magnesium, and because you get significant discount per purchase when selecting a subscription.

Can I cancel my subscription?

Yes. You can cancel any time through your dashboard before the next automatic shipment processes or by emailing support@nesi.health.

5. Safety & Storage

Are Nesi products safe during pregnancy or breastfeeding?

We recommend consulting your healthcare provider before taking any supplement while pregnant, breastfeeding, or planning to conceive.

Can I take Nesi products with alcohol?

There are no known interactions, but we recommend avoiding alcohol around the time you take supplements for best results.

How should I store Nesi supplements?

Store in a cool, dry place away from direct sunlight. Keep bottles tightly sealed for freshness.

How old do you have to be to use Nesi products?

Nesi capsules are intended for adults 18 and older. We will be launching gummies for kids, so stay tuned!

6. Contact

How can I contact customer service?

You can reach our customer service team by emailing support@nesi.health or by calling customer service at 1 (833) NESIMAG (833-637-4624). Leave a voicemail, and our team will respond promptly during business hours Monday through Friday, 9-5EST.

What are your business hours?

Our business hours are Monday through Friday from 9:00am to 5:00pm EST.

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