Click here to view Dr. Retzler's HormoneSynergy® Longevity BLOG

RetzlerRx Brain Calm Extra Strength supplement for stress support calm focus and mood balance
Brain Calm Extra Strength – Suntheanine® Stress & Focus Support Brain and Mood Support Dr. Retzler’s Line of Premier Supplements HormoneSynergy
Brain Calm Extra Strength – Suntheanine® Stress & Focus Support Brain and Mood Support Dr. Retzler’s Line of Premier Supplements HormoneSynergy

Brain Calm Extra Strength | Stress, Mood & Focus Support

Regular price
$ 94.99
Sale price
$ 89.95
Quantity must be 1 or more

Brain Calm Extra Strength | Stress, Mood & Focus Support

Support calm focus, stress resilience, and balanced mood with RetzlerRx® Brain Calm Extra Strength, a physician-formulated supplement designed to promote relaxation, neurotransmitter support, and mental clarity.* This advanced formula features Suntheanine®, a clinically studied form of L-theanine, along with targeted vitamins, minerals, and amino acids to help support a calm, collected mindset without drowsiness.*

Best for: Individuals seeking support for daily stress, mood balance, calm focus, and mental clarity without sedation.

Brain Calm Extra Strength builds on the original Brain Calm formula with optimized levels of key nutrients plus vitamin C and selenium to support neurotransmitter synthesis, nervous system health, and everyday emotional balance.* It is well suited for professionals, students, and anyone wanting clear-headed stress support throughout the day.*

Key Benefits

  • Suntheanine® (L-Theanine) – Promotes relaxation without sedation and supports calm focus.*
  • Stress Resilience Support – Helps support the body during occasional stress and promotes calm.*
  • Mood Balance Support – Supports neurotransmitter synthesis for healthy emotional balance.*
  • Mental Clarity & Focus – Encourages alert calmness for productivity at work, study, or home.*
  • Nervous System Support – Includes vitamin C, selenium, and supportive cofactors for neuronal health.*
  • Doctor Formulated – Precision-designed using principles of functional and longevity medicine.
  • Clean Formula – Non-GMO, gluten-free, vegan-friendly, and free from unnecessary fillers.

Who May Benefit

  • Individuals experiencing daily stress
  • People seeking calm focus without drowsiness
  • Those interested in mood balance support
  • Professionals and students wanting mental clarity support
  • Individuals seeking non-stimulant support for emotional balance

Why RetzlerRx®

RetzlerRx® supplements are developed using practitioner-grade standards and clinically relevant formulations. These products are aligned with the philosophy of HormoneSynergy® Longevity Medicine, where targeted nutrition, advanced diagnostics, and evidence-based preventive longevity medicine support long-term neurological and metabolic wellness.

  • Physician formulated
  • Practitioner-grade quality
  • Clinically selected ingredients
  • Non-GMO and gluten-free
  • No unnecessary fillers

Suggested Use

Take two capsules daily, or as directed by your healthcare provider.


Frequently Asked Questions

What does Brain Calm Extra Strength support?

Brain Calm Extra Strength is designed to support relaxation, stress resilience, mood balance, mental clarity, and calm focus.*

What is Suntheanine®?

Suntheanine® is a clinically studied form of L-theanine used to support relaxation and focused calmness without sedation.*

Will Brain Calm Extra Strength make me drowsy?

This formula is designed to support relaxation and calm focus without promoting sedation.*

Who may benefit from Brain Calm Extra Strength?

Individuals seeking support for daily stress, mood balance, calm focus, and mental clarity may benefit from this formula.*


*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.

HormoneSynergy® Longevity Medicine
Portland • Lake Oswego • Oregon
Evidence-Based Preventive Longevity Medicine