Probiotics Backed by Science, Built on Trust
Thermally Controlled Shipping
Delivered chilled to keep probiotics alive and effective
100% Super Strain Probiotics
Potency maintained until the last capsule
Microplastic & Environmentally Safe
Glass packaging for purity and safety
90-Day Money Back Guarantee
Try risk-free with our satisfaction promise
Pharmaceutical Grade Probiotic Manufacturer
Crafted with precision in every batch
International Drug GMP Certified
Produced under strict global standards
Industry Pioneer
Over 40 years of expertise in probiotics only
Made in the USA
Proudly manufactured in state-of-the-art American facilities.
100% Potency Guaranteed
We don’t just measure at manufacture — we guarantee every strain maintains its full potency until the expiration date. Using the TrenevProcess®, probiotics remain suspended in their natural supernatant for stability and survival.
Proprietary Oil Matrix
Natren’s unique oil matrix delivery system shields live probiotics as they pass through the harsh gastric environment, ensuring they arrive where they’re needed most. Amber glass bottles and cold storage extend that potency until the very last capsule.
Internationally Recognized Quality Standards
Natren products are manufactured under International Good Manufacturing Practice (cGMP) certification, issued by Australia’s Therapeutic Goods Administration (TGA). As part of the Pharmaceutical Inspection Convention and co-operation Scheme (PIC/S), these certifications are backed by government-level oversight. This process provides assurance that Natren probiotics consistently meet internationally endorsed standards for quality, safety, and accuracy.
Proven Safe. Proven Reliable.
Natren follows international manufacturing protocols designed to keep every probiotic safe, effective, and true to label. Our facilities are certified to International Good Manufacturing Practice (cGMP) standards by the TGA in Australia and regularly audited under the PIC/S system. This third-party oversight guarantees that the probiotics you buy deliver exactly what we promise.
Nothing Fake. Nothing Modified.
Natren probiotics contain only what your body needs — no artificial dyes, no genetically modified organisms. Our facilities are certified under International Good Manufacturing Practice (cGMP) by Australia’s TGA and monitored through the PIC/S system. This means government agencies around the world independently validate our production for safety, purity, and honesty in labeling.
Four Decades of Probiotic Innovation
For over 40 years, Natren has refined its probiotics through laboratory testing and validation. Every strain has been checked for its ability to withstand bile and stomach acid, and independent labs have confirmed their strength. Highlights include DDS-1 Lactobacillus acidophilus, the NAS strain for the small intestine, Bifidobacterium bifidum Malyoth for colon health, LB-51 Lactobacillus bulgaricus for digestive function, and LIFESTART® Bifidobacterium infantis, trusted for infant gut balance.
Made in America. Validated Worldwide.
Natren combines American innovation with internationally recognized standards of safety and quality. From research and formulation to production, everything takes place in our controlled U.S. facilities. Our International cGMP certification provides independent validation that every probiotic we make lives up to strict global requirements, ensuring that what’s on the label is exactly what you receive.
The Probiotic Specialist
Probiotics are all we do. With over 40 years of hands-on experience, Natren’s dedicated team cultivates and produces precision probiotic formulas with unmatched focus, care, and innovation.
Convenience and Reliability
Targeted for every need, Natren’s probiotics come in capsules, powders, wafers and even yogurt starters—each designed to support different areas of the digestive tract.
Safety and Trust
Backed by decades of safe use and traditional fermented foods, Natren’s lactic acid bacteria are trusted for their purity, effectiveness, and consistent customer satisfaction.
A Legacy of Probiotics
From royal suppliers to American pioneers, Natren’s founder Natasha Trenev brings generations of probiotic wisdom—delivering products rooted in heritage, science, and passion.
A System Designed for Living Bacteria
True probiotics must stay alive to work. Natren’s thermally controlled system maintains a stable, cold environment from our laboratory to your doorstep. While others compromise with room-temperature products, we go the extra mile to preserve every strain’s vitality, giving you probiotics that deliver consistent, reliable results.