Probiotic Synergy DF350 – Ultra-High Potency, Multi-Strain Probiotic
Probiotic Synergy DF350 – Ultra-High Potency, Multi-Strain Probiotic
Probiotic Synergy DF350 – Ultra-High Potency, Multi-Strain Probiotic
Probiotic Synergy DF350 – Ultra-High Potency, Multi-Strain Probiotic
Probiotic Synergy DF350 – Ultra-High Potency, Multi-Strain Probiotic
Probiotic Synergy DF350 – Ultra-High Potency, Multi-Strain Probiotic
Probiotic Synergy DF350 – Ultra-High Potency, Multi-Strain Probiotic
Probiotic Synergy DF350 – Ultra-High Potency, Multi-Strain Probiotic

Probiotic Synergy DF350 – Ultra-High Potency, Multi-Strain Probiotic

Regular price
$ 148.99
Sale price
$ 119.95
Quantity must be 1 or more

RetzlerRx® Probiotic Synergy DF350 is a premium, ultra-high potency probiotic designed for comprehensive gut, immune, and microbiome support. Each serving delivers 350 billion CFU from an advanced blend of 18 clinically studied strains, including HOWARU®, FloraFIT®, and Fonterra® HN019 — some of the most researched probiotics in the world.

Unlike standard probiotics, Probiotic Synergy DF350 uses acid-resistant DRCaps® to protect delicate strains from stomach acid, ensuring they survive and thrive in the intestines where they are most effective.

Crafted by Dr. RetzlerRx™ for advanced microbiome rebalancing, DF350 is ideal for those with complex digestive needs, recovering from antibiotic use, or seeking the best high-strength probiotic for long-term gut and immune resilience.


Key Features & Benefits

  • 18-Strain Clinical Blend – Provides broad-spectrum support for gut balance and immune defense.

  • Ultra-High Potency – 350 billion CFU per serving for maximum effectiveness.

  • HOWARU® & FloraFIT® Strains – Validated in clinical studies for gut barrier, digestion, and immune function.

  • Fonterra® HN019 Bifidobacterium lactis – Researched for regularity, gut integrity, and resilience.

  • Acid-Resistant DRCaps® – Protect probiotics from stomach acid for superior survival and delivery.

  • Gut Health Support – Promotes digestion, reduces bloating, and enhances nutrient absorption.

  • Immune Strength – Supports the gut-immune connection for whole-body wellness.

  • Doctor Formulated – Precision-designed for advanced gut and microbiome support.

  • Clean & Pure – Non-GMO, allergen-free, vegan-friendly, with no artificial fillers.


Suggested Use

Take one capsule daily, or as directed by your healthcare provider. For best results, integrate consistently into your daily wellness routine.


RetzlerRx® Probiotic Synergy DF350, with HOWARU®, FloraFIT®, Fonterra® HN019, and acid-resistant DRCaps®, is the ultimate science-backed probiotic for gut, immune, and microbiome health.

Note: These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.