Since 1969, the Klaire Labs name has been trusted to deliver clean, highly effective nutraceutical formulations suitable for even the most sensitive individuals.

Our Philosophy

Our founder Claire Farr was a passionate disrupter. Among the very first to insist on pharmaceutical grade active ingredients, manufactured to minimize allergens, artificial additives, fillers, and flow agents. We strive to honor her legacy in every dose.

Effective potency is multi-faceted. Not simply measured in milligrams or CFU, the measure of a truly potent supplement takes into consideration the clinically effective dosage and the bioavailability of the dose form: two key factors in the formulation of every Klaire Labs product.

Trusted by professionals for half a century, Klaire Labs nutritional supplements consistently empower healthcare practitioners with successful outcomes.

This enduring commitment to quality is at the root of the unification with our sister brands, ProThera and Complementary Prescriptions. LEARN MORE


  • Learn more about our founder: meet Claire Farr
  • Visit our new cGMP manufacturing facility
  • Target gb-X with Ecologic BARRIER: probiotic clinically demonstrated to reduce cognitive reactivity to sad mood, ruminative and aggressive thoughts.

Influence of a Specialized Probiotic Formula on Mood: Four Case Reports

September 28, 2018

crop.Klaire Labs_Case Study Whitepaper_Landing Page Image.jpg.thumbnail.150x150.jpegCases Reported By: Mark Sherwood, ND and Michele Neil-Sherwood, DO (Functional Medical Institute)

This whitepaper outlines the self-reported influence of a specialty probiotic over the course of eight weeks.  Each of four participants rated 6

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Kids Under Siege: Identifying Root Causes for the Prevention and Treatment of Autoimmune Disease in Children

September 13, 2018

KlaireLabs_logo_200-1.png.medium.800x800.pngBy 2025, projections indicate that up to 80% of US children will be diagnosed with a chronic disease.

In this webinar, Dr. Song explores the alarming trends in childhood autoimmune disease, effective prevention strategies, and the five steps to

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Webinar: The Role of Probiotics in Lactation and Infant Development

June 13, 2018


Leading health organizations, including the World Health Organization, recommends exclusive breastfeeding in infants up to six months of age. Unfortunately, breastfeeding practices in the U.S. fall considerably short of this recommendation. Only 43%

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A randomized controlled trial to test the effect of multispecies probiotics on cognitive reactivity to sad mood

January 22, 2018

by Laura Steenbergen, Roberta Sellaro, Saskia van Hemert, Jos A. Bosch, and Lorenza S. Colzato

Clinical Trial: The intestines and brain are intimately connected via the gut-brain axis involving bi-directional neural, endocrine, and immune

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