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Doctor-Formulated for Sleep & Stress Support
Feel Calm and Relaxed
All Night Without Stress
Modern stress and mineral depletion keep your body wired at night. Real rest comes from restoring the minerals your nervous system needs to unwind.
Highly Absorbable Magnesium
Science-Backed Formula
Third Party Tested
Supports Immune Function
Deeper Restful Sleep
ENHANCE MENTAL CALM
Supports Heart Health
Bone & Skeletal Support
Supports Whole-body Detox
Supports Immune Function
Deeper Restful Sleep
ENHANCE MENTAL CALM
Supports Heart Health
Bone & Skeletal Support
Supports Whole-body Detox
01
Restless or Light Sleep
02
Constant Stress or Tension
03
Low Mood or Brain Fog
04
Muscle Tightness or Soreness
05
Slower Recovery Over Time
Why Mag18 Restores Sleep at the Cellular Level
Here’s how that difference works inside your body.
Sleep and relaxation begin at the cellular level. Stress and mineral depletion disrupt the signals that help your body fully unwind at night.
Mag18 supports the processes that help calm the nervous system, relax muscles, and promote deeper, more restorative sleep.
No stimulants
or melatonin
Supports nervous system
Designed for nightly,
long-term use
How Mag18 Helps You Sleep Better
Mag18 supports nighttime relaxation so your body can rest, recover, and reset naturally.
Helps regulate the body’s stress response
Supports nighttime muscle relaxation
Supports consistent sleep quality over time
How to Use Mag18
One simple step before bed for calm, restorative sleep.
Limited Time:
Your Cellular Reset Starts Here
Save 30% on your First Subscription
SUPPORT RESTFUL SLEEP
CALM THE NERVOUS SYSTEM
PROMOTE MUSCLE RECOVERY
SUPPORT STRESS RESILIENCE
Rated 4.9/5 from 66 Reviews | 1000+ Customers Purchases
Mag18 | Peptide-Powered Daily Magnesium
Best used for: Sleep | Stress | Recovery
Support deeper sleep and stress recovery with Mag18, a peptide powered magnesium designed to calm the nervous system and aid overnight recovery.
Clinically Proven Results
90-Day Clinical Study
💤 86%
Deeper, more restful sleep*
⚡️ 83%
Better muscle recovery*
☺️ 85%
Felt calmer and less stressed*
choose Your Frequency
Proudly Made in the USA
Fast & Free U.S. Shipping
30-Day Money Back Guarantee
Key Features
Mag18 goes beyond the basics, with amino acids for optimal absorption, the purest cultivation process of organic spirulina and beetroot crafted to give your body the minerals essential for living well. With magnesium-activating enzymes critical to vitamin D3 metabolism, Mag18 delivers the deep replenishment your body craves.
Restore, rewind, and relax with a powerful synergy of whole-food magnesium chelate and essential vitamins D3 and K2. Formulated to support bone density, better sleep, and less stress.
Key Benefits:
✅ Bone Strength & Skeletal Support
✅ Encourage Restorative Sleep
✅ Boost Mental Clarity and Immunity
✅ Optimize Muscle Function
✅ Obtain Optimal Absorption
✅ Improve Cardiovascular Health
Key Ingredients:
✅ Magnesium Chelate: Strengthen bones and muscles and support heart rhythm, cellular function, and mental clarity.
✅ Vitamin D3: Improve calcium absorption with vitamin D3 to boost immune health, enhance mood, and increase muscle strength.
✅ Vitamin K2: Improve bone density while helping to prevent arterial calcification.
How to Use
Take Mag18 once daily with food, preferably in the evening if you’re using it to support sleep and relaxation. It’s easy to add to your daily wellness routine and plays well with other Longevity Rx products.
Ingredients
Magnesium Chelate: Strengthen bones and muscles and support heart rhythm, cellular function, and mental clarity.
Vitamin D3: Improve calcium absorption with vitamin D3 to boost immune health, enhance mood, and increase muscle strength.
Vitamin K2: Improve bone density while helping to prevent arterial calcification.
Certifications & Testing
Certified Non-GMO
Vegan-Friendly & Plant-Based
No Artificial Sweeteners, Colors, or Fillers
Good Manufacturing Practices (GMPs)
Sourced and Made in the USA in FDA-Registered Facilities
Third-Party Tested for Purity and Potency
Free of Gluten, Dairy, and Common Allergens
Clinically Studied, Doctor Formulated Ingredients
Quality Control
Every batch of Mag18 is crafted in a GMP-certified facility, with rigorous quality standards and third-party testing. Our doctors and researchers source only premium, clinically studied ingredients free from GMOs, artificial additives, or unnecessary fillers. What you see on the label is exactly what you get in your scoop.
What to Expect With Consistent Liv120 Use
*Results may vary. Benefits reported with consistent daily use.
7 DAYS
Feel the First Shift*
Falling asleep feels easier and more natural
Less nighttime restlessness or tension
Body begins to unwind smoothly in the evening
2 weeks
Your Nervous System Starts Responding*
Deeper, more consistent sleep cycles
Reduced daily stress and physical tension
Waking up feeling more refreshed
1 Month
Deeper Recovery Sets In*
Improved muscle relaxation and overnight recovery
Calmer mood and improved stress resilience
More consistent daytime energy from better rest
3 Months +
Long-Term Sleep & Stress Balance*
Reliable, restorative sleep night after night
Stronger nervous system balance over time
Improved overall calm, recovery, and daily resilience
How These Ingredients
Support Your Body
Carefully selected nutrients that work together to support calm energy, recovery, and long-term balance.
Magnesium Chelate
A peptide-bound blend of 18 magnesium forms designed for superior absorption. Helps relax muscles, maintain heart rhythm, balance the nervous system, and fuel cellular energy.
Vitamin D3
Improves calcium absorption to support bone strength, immune health, mood, and muscle function.
Vitamin K2
Helps guide calcium into bones while supporting healthy arteries and cardiovascular balance.
Zinc
Supports immune defense, hormone balance, and skin health, working in harmony with essential minerals.
Real Results You Can Feel Over Time
Supports deeper sleep, faster recovery, and a calmer nervous system.
Sleep Better
81%
Slept more soundly and woke refreshed
Recover Faster
77%
Noticed improved muscle recovery
Feel Calmer
85%
Felt calmer with reduced daily stress
1,000+ Five-Star Reviews
What People Are Saying
I created Longevity Rx because most wellness products only target surface symptoms and never reach the root of the problem. My patients needed formulas that actually support the body where health begins, at the cellular level. These products come from years of clinical experience and careful formulation, designed to help you feel stronger, more balanced and more energized in a real and lasting way.
Dr. Will Cole, MD
Founder, Longevity Rx
Frequently Asked Questions
What makes Mag18 different from other magnesium supplements?
Mag18 is more than basic magnesium. It combines highly bioavailable whole-food magnesium chelate with vitamins D3 and K2, plus supportive superfoods like spirulina and beet root. This synergistic formula supports sleep, stress balance, muscle recovery, bone health, heart health, and overall nervous system function in one daily supplement.
What benefits can I expect from taking Mag18?
It’s a foundational supplement for feeling calm, strong, and centered every day. With daily use, Mag18:
1: Strengthens bones by enhancing calcium absorption and directing it where it belongs Supports muscle recovery and relaxation
2: Improves sleep quality and stress resilience
3: Enhances cardiovascular health and proper blood flow
4: Boosts mood and mental clarity through neurotransmitter regulation
How should I take Mag18?
Take Mag18 once daily with food, preferably in the evening if you’re using it to support sleep and relaxation. It’s easy to add to your daily wellness routine and plays well with other Longevity Rx products.
When will I start noticing results?
Some people notice calmer evenings and better sleep within the first week. Benefits continue to build over time, with more noticeable improvements after 2–4 weeks of consistent use.
How do you ensure the quality of Mag18?
Mag18 is made using high-quality, bioavailable ingredients and is third party tested for purity, potency, and safety to ensure consistent quality in every batch.
Who should take Mag18?
Anyone experiencing stress, poor sleep, muscle cramps, or signs of magnesium deficiency (like irritability or low energy) can benefit.Mag18 is also ideal for those looking to support bone strength, heart health, and stress resilience at any age.
Rated 4.9/5 from 66 Reviews | 1000+ customers Purchases