Why Natren

Why Natren Precision Probiotics

Thermally Controlled Shipping

Keeping bacteria ALIVE, active and healthy

100% Super Strain Probiotics

100% potency guaranteed

Microplastic & Environmentally Safe

Dark glass bottles with a tin lead

90-Day Money Back Guarantee

Over 20 million satisfied customers. 90% repeat customers

Pharmaceutical Grade Probiotic Manufacturer

Clinically tested unique precision probiotic products

International Drug GMP Certified

Sold in over 50 countries

Industry Pioneer

Over 40 years in the industry. Established in 1982 by Natasha Trenev, 'The Mother of Probiotics'

100% Potency Guaranteed

Natren guarantees 100% colony forming units (cfu) potency through the printed expiration date (not just at time of manufacture). Natren's probiotics are carefully produced using the proprietary TrenevProcess®, preserved within the probiotic's natural supernatant.

Proprietary Oil Matrix

Natren's 3-in-1 capsule also contains a proprietary oil matrix for maximum intestinal delivery. All of Natren's probiotics are packaged into amber glass bottles and continuously refrigerated to provide extended cfu potency.*

Good Manufacturing Practices Certified by a Third Party International Agency

Natren's products meet the highest international standards for quality, safety and manufacturing protocols. Natren's facilities and operations have received International Good Manufacturing Practice (cGMP) Certification by Australia's Therapeutic Goods Administration (TGA).* TGA is a signatory to the Pharmaceutical Inspection Convention (PIC) and the Pharmaceutical Inspection co-operation Scheme (PIC Scheme). PIC guarantees that the member governments' regulatory agencies are enforcing standards that have been mutually endorsed and recognized by the member nations. When a manufacturer is audited by a third-party government agency, the International cGMP certification assures the customer that the label declarations have been independently validated.

Clinical Trial Research

Natren's products meet the highest international standards for quality, safety and manufacturing protocols. Natren's facilities and operations have received International Good Manufacturing Practice (cGMP) Certification by Australia's Therapeutic Goods Administration (TGA).* TGA is a signatory to the Pharmaceutical Inspection Convention (PIC) and the Pharmaceutical Inspection co-operation Scheme (PIC Scheme). PIC guarantees that the member governments' regulatory agencies are enforcing standards that have been mutually endorsed and recognized by the member nations. When a manufacturer is audited by a third-party government agency, the International cGMP certification assures the customer that the label declarations have been independently validated.

No Artificial Colors Or Genetically Modified Organisms

Natren's products meet the highest international standards for quality, safety and manufacturing protocols. Natren's facilities and operations have received International Good Manufacturing Practice (cGMP) Certification by Australia's Therapeutic Goods Administration (TGA).* TGA is a signatory to the Pharmaceutical Inspection Convention (PIC) and the Pharmaceutical Inspection co-operation Scheme (PIC Scheme). PIC guarantees that the member governments' regulatory agencies are enforcing standards that have been mutually endorsed and recognized by the member nations. When a manufacturer is audited by a third-party government agency, the International cGMP certification assures the customer that the label declarations have been independently validated.

Three Decades of Laboratory Research

Natren's probiotic super-strains and formulations have undergone three decades of independent laboratory culturing and testing; resulting in some of the strongest and most powerful strains available. Bile tolerance and stomach acid survival tests have been conducted on each strain, and independent laboratories have confirmed Natren's testing. Key super-strains produced by Natren include the only Lactobacillus acidophilus, DDS-1 strain independently verified to be the strain isolated and tested by Dr. Shahani; the NAS super strain that integrates within the small intestines; the Bifidobacterium bifidum, Malyoth super strain that encourages large intestine wellness; the Lactobacillus bulgaricus, LB-51 super strain that assists digestive functions throughout the entire intestinal tract; and the LIFESTART® bacteria, Bifidobacterium infantis, NLS.*

Research, Formulation and Production in USA

Natren's products meet the highest international standards for quality, safety and manufacturing protocols. Natren's facilities and operations have received International Good Manufacturing Practice (cGMP) Certification by Australia's Therapeutic Goods Administration (TGA).* TGA is a signatory to the Pharmaceutical Inspection Convention (PIC) and the Pharmaceutical Inspection co-operation Scheme (PIC Scheme). PIC guarantees that the member governments' regulatory agencies are enforcing standards that have been mutually endorsed and recognized by the member nations. When a manufacturer is audited by a third-party government agency, the International cGMP certification assures the customer that the label declarations have been independently validated.

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, creams, 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.