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RetzlerRx High Potency Vitamin D3 5000 IU softgels for bone strength, calcium absorption, and immune support
Vitamin D3 5000 IU - High Potency, Bioavailable | 120 SoftgelsRetzlerRx® Vitamin D3 5000 IU – High-Potency Bone & Immune Support Cardiometabolic & Heart Health Collection HormoneSynergy

High Potency Vitamin D3 5000 IU | Bone & Immune Support | RetzlerRx®

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$ 28.00
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High Potency Vitamin D3 5000 IU | Bone & Immune Support

RetzlerRx® High Potency Vitamin D3 5000 IU delivers a high-potency, bioavailable dose of vitamin D3 to support bone strength, immune health, and overall vitality.* With 120 easy-to-swallow softgels, this supplement provides a convenient daily source of vitamin D for those seeking to maintain optimal wellness or support healthy vitamin D status.*

Vitamin D3 plays an important role in calcium absorption, bone density, immune system function, and overall wellness.* Unlike lower-dose supplements, this formula provides a higher-potency option for individuals who want consistent daily vitamin D support in a highly absorbable form.*

Best For:
  • Bone strength and calcium absorption support*
  • Daily immune system support*
  • Individuals seeking higher-potency vitamin D3*
  • Long-term wellness and vitality support*
  • Those wanting an easy-to-take vitamin D3 softgel*

Whether you’re looking for a high-potency vitamin D3 supplement for bone and immune support or a doctor-formulated daily wellness formula, RetzlerRx® High Potency Vitamin D3 5000 IU is designed to deliver reliable, convenient nutritional support.*


Key Features & Benefits

  • High-Potency Formula – Delivers 5000 IU of vitamin D3 per softgel for convenient daily support.*
  • Supports Bone Strength – Helps support calcium absorption and healthy bones and teeth.*
  • Immune Health Support – Helps promote immune resilience and balanced immune function.*
  • Cardiovascular Wellness Support – Supports normal calcium balance and overall wellness.*
  • Convenient Supply – 120 softgels provide a 4-month supply when taken as directed.
  • Doctor Formulated – Developed using principles of functional and longevity medicine.
  • Clean & Pure – Non-GMO, gluten-free, and made with high-quality ingredients.

Key Ingredients

Vitamin D3 is the biologically relevant form of vitamin D commonly used in supplements to support calcium absorption, bone health, and immune function.* Adequate vitamin D status is also important for maintaining normal physiological function across multiple body systems.*

This formula delivers 5000 IU of vitamin D3 in an easy-to-swallow softgel, offering a convenient option for those seeking higher-potency daily support.*


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 in 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

Take one softgel daily with a meal, or as directed by your healthcare provider.

RetzlerRx® High Potency Vitamin D3 5000 IU is your premium, doctor-formulated solution for bone strength, immune health, and overall vitality.*


Frequently Asked Questions

What does Vitamin D3 5000 IU support?

This formula is designed to support bone strength, calcium absorption, immune health, and overall wellness.*

Why is vitamin D3 important?

Vitamin D3 helps support calcium absorption, healthy bones and teeth, immune function, and normal physiological balance throughout the body.*

Who may benefit from a higher-potency vitamin D3 supplement?

Individuals seeking more robust daily vitamin D support may prefer a higher-potency vitamin D3 formula, as directed by their healthcare provider.*

How should I take this supplement?

Take one softgel daily with a meal, or as directed by your healthcare provider.

How long does one bottle last?

Each bottle contains 120 softgels, which provides a 4-month supply when taken once daily.


*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