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RetzlerRx® Magnesium L-Threonate Powder with Magtein® unflavored for cognitive support, memory, relaxation, and healthy sleep cycles
RetzlerRx® Magnesium L-Threonate Powder – Magtein® Cognitive & Sleep Support UNFLAVORED Brain and Mood Support Dr. Retzler’s Line of Premier Supplements HormoneSynergy
RetzlerRx® Magnesium L-Threonate Powder – Magtein® Cognitive & Sleep Support UNFLAVORED Brain and Mood Support Dr. Retzler’s Line of Premier Supplements HormoneSynergy
RetzlerRx® Magnesium L-Threonate Powder – Magtein® Cognitive & Sleep Support UNFLAVORED Brain and Mood Support Dr. Retzler’s Line of Premier Supplements HormoneSynergy
RetzlerRx® Magnesium L-Threonate Powder – Magtein® Cognitive & Sleep Support UNFLAVORED Brain and Mood Support Dr. Retzler’s Line of Premier Supplements HormoneSynergy
RetzlerRx® Magnesium L-Threonate Powder – Magtein® Cognitive & Sleep Support UNFLAVORED Brain and Mood Support Dr. Retzler’s Line of Premier Supplements HormoneSynergy
RetzlerRx® Magnesium L-Threonate Powder – Magtein® Cognitive & Sleep Support UNFLAVORED Brain and Mood Support Dr. Retzler’s Line of Premier Supplements HormoneSynergy
RetzlerRx® Magnesium L-Threonate Powder – Magtein® Cognitive & Sleep Support UNFLAVORED Brain and Mood Support Dr. Retzler’s Line of Premier Supplements HormoneSynergy
RetzlerRx® Magnesium L-Threonate Powder – Magtein® Cognitive & Sleep Support UNFLAVORED Brain and Mood Support Dr. Retzler’s Line of Premier Supplements HormoneSynergy

RetzlerRx® Magnesium L-Threonate Powder with Magtein® Unflavored

Regular price
$ 80.99
Sale price
$ 62.95
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RetzlerRx® Magnesium L-Threonate Powder with Magtein® Unflavored

Advanced brain-focused magnesium powder with Magtein® for cognitive performance, memory, relaxation, and healthy sleep cycle support.*

Part of the RetzlerRx® physician-formulated longevity supplement system.

RetzlerRx® Magnesium L-Threonate Powder features Magtein®, a clinically studied form of magnesium designed for enhanced brain bioavailability. This advanced formula is used to support cognitive performance, learning, memory, relaxation, and healthy sleep cycles.*

Delivered in a highly absorbable powder form, Magnesium L-Threonate provides targeted support for both brain and body, making it a smart option for individuals seeking enhanced focus during the day and more restful recovery at night.* Doctor formulated and cleanly sourced, RetzlerRx® provides premium-quality magnesium support you can trust.*

Best for:
  • Cognitive performance and memory support*
  • Calm focus and learning support*
  • Relaxation and sleep quality support*
  • Individuals seeking brain-focused magnesium support*
  • Daily magnesium nutrition with powder delivery*

Magnesium L-threonate is a specialized form of magnesium commonly used to support cognitive function, mental clarity, relaxation, and sleep quality.* Featuring Magtein®, this formula is selected for its clinical research profile and use in brain-focused magnesium support formulas.*

This unflavored powder provides a targeted option for individuals seeking magnesium support that aligns with brain health, relaxation, recovery, and healthy aging goals.* Because cognitive function, sleep quality, inflammatory balance, and metabolic health are interconnected within longevity medicine, this formula fits naturally within a broader physician-guided wellness strategy.*

Key Features & Benefits

  • Featuring Magtein® – Patented, clinically studied form of magnesium L-threonate designed for brain bioavailability.*
  • Cognitive Performance – Helps support focus, memory, and learning capacity.*
  • Brain Bioavailability – Designed to support magnesium delivery relevant to neurological wellness.*
  • Relaxation & Sleep – Helps calm the mind and support restful sleep cycles.*
  • Doctor Formulated – Developed using principles of functional and longevity medicine.
  • Clean & Pure – Non-GMO, vegan-friendly, gluten-free, and free of artificial fillers.

Why RetzlerRx®

RetzlerRx® supplements are developed within the HormoneSynergy® Longevity Medicine ecosystem using principles of Evidence-Based Preventive Longevity Medicine. Each formula is selected for ingredient quality, clinical relevance, and real-world patient use within a physician-guided care model.

  • Practitioner-formulated nutritional support
  • Clinically relevant ingredient selection
  • Designed to complement preventive longevity medicine strategies
  • Focused on high-quality, clean-label formulations

Suggested Use

Mix one scoop into 8 oz of water or your favorite beverage, or as directed by your healthcare provider.

RetzlerRx® Magnesium L-Threonate Powder with Magtein® technology is an advanced, science-informed option for cognitive support, relaxation, and daily magnesium nutrition.*

Longevity Medicine Resources

Video: Dr. Kathryn Retzler Explaining Benefits of Magnesium L-Threonate

Frequently Asked Questions

What does Magnesium L-Threonate Powder support?

This formula is designed to support cognitive performance, memory, relaxation, sleep quality, and daily magnesium nutrition.*

What is Magtein®?

Magtein® is a branded, clinically studied form of magnesium L-threonate used in formulas designed to support cognitive wellness and brain-focused magnesium delivery.*

How is magnesium L-threonate different from other magnesium forms?

Magnesium L-threonate is commonly selected for brain and cognitive support goals, while other magnesium forms are more often used for broader digestive, muscular, or general mineral support.*

Who may benefit from this formula?

Individuals seeking support for focus, memory, mental clarity, relaxation, or sleep quality may benefit from this formula.*

How should I take this supplement?

Mix one scoop into 8 oz of water or your favorite beverage, or as directed by your healthcare provider.

HormoneSynergy® Longevity Medicine
Physician-guided, evidence-based preventive longevity medicine integrating advanced testing, personalized care, lifestyle medicine, and targeted nutritional support.

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.