Quality borne of passion

Since 1969, Klaire Labs™ has been dedicated to developing clean, efficacious nutritional supplements to ensure optimal outcomes for even the most sensitive individuals. This enduring commitment to quality is at the root of the unification with our sister brands, ProThera and Complementary Prescriptions.

See & hear Claire Farr's story »

Digestive support

Ther-Biotic, the first hypoallergenic probiotic, serves as the flagship of our deep line of GI support formulations.

Clean & efficacious products

Empowering practitioners with clean and effective formulations is our commitment. Reliable outcomes is our reward.

Brain support

With an extensive nutraceutical offering in support of cognitive health and mood, Klaire Labs delivers scientifically proven and studied active ingredients in optimal formulations for efficacy.


Purity-Check. Potency-Check. Performance-Check.

Women's health

Women's health was a passion of our founder, and remains a dominant category in the Klaire Labs product offering.



A legacy built on purity

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



A promise of potency

Effective potency is multi-faceted. Not simply measured in milligrams or CFU alone, the measure of a truly potent supplement takes into consideration the clinically-proven dosage and the bioavailability of the dose form. Factors including complementary active ingredients, formulation purity, and bio-absorption are taken into consideration to optimize the potency of every Klaire Labs product.



Outcomes-based performance

Trusted by healthcare practitioners since 1969, Klaire Labs nutritional supplements consistently empower healthcare practitioners with successful outcomes. Our clean and bioavailable formulations perform reliably for even sensitive individuals following a natural approach to health and wellness.

Meet Klaire Farr

See & hear Claire Farr's story

Meet Claire »