Source
Make official New Zealand and Australian distribution visible from the beginning.
We support customers and practitioners with authentic products, practical product information and access to evidence-led education.
How we work
Nutritional Medicine NZ brings authentic products, local access and education into one experience. Our role is to support informed conversations, not replace individual clinical guidance.
Make official New Zealand and Australian distribution visible from the beginning.
Organise the catalogue by meaningful pathways and formats instead of burying it in filters.
Place education beside products without presenting general information as personal advice.

Product pages explain the form, collection, source and practical ordering details. Individual suitability belongs with the label and an appropriately qualified practitioner.
Browse educationLarge imagery, open layouts and purposeful grouping make the range easier to scan.
Education gives people vocabulary and context for a more useful practitioner conversation.
Local distribution, NZ and AU pricing and practical ordering details stay close to every product.
Biocidin Botanicals was founded in 1989 in response to the needs of physicians addressing opportunistic infections. The following year, Great Smokies Diagnostic Laboratories (now Genova Diagnostic) was sent a sample of Biocidin® by a physician and had it tested for sensitivity against bacteria and yeast species. They found that Biocidin® was “the most powerful inhibitor of pathogenic organisms” that they had tested, and that it was “equal or more effective than traditional therapies”. They began to refer physicians, and soon many practitioners across the country were reporting outstanding clinical results.
In response to health care practitioners’ continued request for effective solutions to address problems associated with intestinal ecology, immune system disregulation and detoxification, a selection of companion products were developed. Today, over 36 years later, Biocidin Botanicals is recognized as a leader in the field of natural medicine.
Founding director Dr. Rachel Fresco L. Ac., Ph. D. continues to use her extensive background in medical herbology, functional medicine and clinical nutrition to develop innovative specialty products for health professional use. Dr. Fresco is a popular speaker on the topic of biofilms, microbiome balance, and systemic microbial challenges.
Corene Humphreys, the founder of Nutritional Medicine is a registered naturopath from New Zealand with over 30 years experience in the medical industry.
Her initial training was in the field of medical microbiology and after graduating as a naturopath, she operated a multidisciplinary practice for seven years, specializing in Functional Medicine. She also served as a clinical consultant for a number of specialty diagnostic companies which lead her to immigrate to the U.S. in 2000.
During her role with the American company Genova Diagnostics (formerly Great Smokies Diagnostic Laboratory), Corene was instrumental in developing a comprehensive gastrointestinal profile (CDSA 2.0), along with other specialty GI and metabolic profiles. She also served as an educational resource for physicians, consulting to literally thousands of practitioners in America as well as international clients.
Upon her return to New Zealand, Corene founded a research company (Nutritional Medicine) in 2006 which sees her developing natural, evidence-based formulations for a number of health conditions. Her company provides consultancy support to conventional and compounding pharmaceutical companies as well as natural health businesses in New Zealand and abroad.
Between 2006 and 2017, Corene authored chapters in several editions of the Textbook of Natural Medicine and Integrative Medicine (on Intestinal Permeability and Insulin Resistance and the Metabolic Syndrome respectively). In 2013, she coauthored a physician’s textbook on homeobotanical therapy.
Corene was a faculty member of South Pacific College of Natural Therapies and Wellpark College between 2011 and 2014, lecturing on the topics of medical microbiology and Functional Medicine. She is a current faculty member of CAM colleges in Australia and the USA where she lectures on botanical therapy, microbiology, gastroenterology and Functional Medicine. As an educator, she also mentors physicians around the world on functional diagnostic testing and integrative medicine.
In 2013, Corene launched the Biocidin Botanicals range into the New Zealand and Australian markets. Her intimate knowledge of the efficacy of these products stemmed from her research in the US while developing GI profiles for Genova diagnostics.
“Functional medicine to me is the bridge between natural and conventional medicine – it brings the science to natural healing and allows us as practitioners to tailor health regimes to enhance clinical outcomes and help prevent chronic disease. Microbiology interfaces with this discipline beautifully as research continues to document the importance of host-microbe interactions in the role of health and disease.”
– Corene Humphreys
BHSc, ND, Dip Med Herb, Dip Hom, QTA (Microbiology)
Our products are formulated by and are designed for health professionals. All botanicals used in our formulations are of the highest USP grade quality, are tested for purity, and come with Certificates of Analysis. There are no synthetic fillers or additives used, and all products are hypo-allergenic and are free of artificial flavors and colorings. Vegi-caps are used rather than gelatin capsules in manufacturing all encapsulated products. Our manufacturing facilities are federally and state licensed to produce nutritional supplements and are certified to follow Good Manufacturing Practices (cGMP’s).
Product testing using American Association of Analytical Chemists (AOAC) methods are standard operating procedure. Independent laboratories are used to test for effectiveness and all products are tested in clinical usage by physicians before being added to our product line.
At Nutritional Medicine, we pride ourselves on a level of customer service that is reflective of the high standards of our products. Our orders department is available 9:00 - 5:00 New Zealand time Mon-Thurs, and from 9.00 - 2.00 on Fridays.
Orders placed before 11.00am NZDT will be shipped the same day. NZ nationwide orders are shipped using NZ Post with a flat fee for all regions. Australian orders can either be shipped via NZ Post International (with a targeted delivery time of 6 to 14 working days), or DHL Express (with a targeted delivery time of 3 to 4 working days). You can choose the option that best suits your needs at checkout. Please note, we do not ship on weekends or public holidays.