What Klaire Labs does

Klaire Labs is a US-based nutraceutical brand that develops, manufactures, and distributes hypoallergenic dietary supplements with a primary focus on probiotics, prebiotics, and digestive enzymes. The brand is operated by ProThera Inc., doing business as SFI Health, and is headquartered in Reno, Nevada. Founded in 1976, it has accumulated fifty years of continuous brand presence and currently employs between 251 and 500 people.

The product portfolio centers on the Ther-Biotic sub-line of multi-species, high-CFU probiotic formulations — including Ther-Biotic Synbiotic, Complete, Women's Formula, Kid's Children's Chewable, and Senior Formula — alongside a broader catalog spanning vitamins and minerals, botanical extracts, enzymes, essential fatty acids, amino acids, antioxidants, and accessory nutrients. Formulations are differentiated through hypoallergenic production standards, FODMAP-certified prebiotics, and demographic-specific (women's, children's, seniors') targeting. Distribution is run through the company's own SFI Health US e-commerce storefront, supplemented by what appears to be a practitioner-recommended channel in which healthcare professionals direct patients to specific SKUs; pricing is positioned at roughly $50 per unit across flagship products, with account registration enabling direct pricing, promotions, and subscription/auto-ship programs.

Commercially, Klaire Labs sells primarily to individual consumers and to patients referred by clinicians, with no public disclosure of named enterprise or institutional customers. The brand also maintains a substantial Research & Science content library (technical data sheets, nutrient protocols, healthcare professional articles) that functions as the top- and mid-funnel engine for practitioner endorsement. The company is privately held, has no disclosed funding rounds, no disclosed M&A activity, and reports no revenue figures in the public sources reviewed.

Name

Klaire Labs

Legal name

ProThera Inc.

Website

https://klaire.com

Company type

Private

Founded year

1976

Operating status

Operating

Headcount range

251–500 employees

Short description

Klaire Labs, operated by ProThera Inc. (d/b/a SFI Health), is a 50-year-old US nutraceutical brand selling hypoallergenic probiotics and dietary supplements directly to consumers and through healthcare practitioners, with a Reno, Nevada headquarters and 251–500 employees.

Ownership category

akta.pro rank

Product category

Nutraceutical Supplements

NAICS

Food (Health) Supplement Retailers (456191), Drugs and Druggists' Sundries Merchant Wholesalers (4242)

SIC

Food And Kindred Products (2000), Medicinal Chemicals & Botanical Products (2833)

akta.pro primary industry

Probiotics & Digestive Health Supplements (CRADAGAF)

akta.pro secondary industries

Probiotic, Prebiotic & Gut-Health Foods Manufacturing (Fermented Functional Foods, Synbiotics) (AFAKAJAH), Prebiotics & Dietary Fibers (Inulin, FOS/GOS, Resistant Starch, Beta-Glucan, Psyllium) (AFAJAKAF), Children’s Vitamins & Supplements (CRADAGAJ)

Keywords

• Probiotic supplements
• Hypoallergenic nutraceuticals
• Dietary supplements
• Microbiome health products
• Professional-grade vitamins

Headquarters

HQ city

Reno

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2C

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Marketing or Sales, Technology or R&D

Revenue model

1. Direct Consumer Sales: Revenue generated from direct-to-consumer sales through the SFI Health e-commerce platform, where customers purchase nutraceutical and supplement products for various health categories including probiotics, vitamins, and botanical extracts.
2. Subscription and Auto-Ship Programs: Customers can register for account-based pricing with promotions and subscription options, indicating recurring revenue through auto-ship programs for repeat purchases of core products.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels4 records

Core offering

Klaire Labs manufactures and sells hypoallergenic, professional-grade nutraceutical supplements — primarily high-CFU multi-species probiotics under the Ther-Biotic line (Synbiotic, Complete, Women's, Kid's, Senior Formula) — alongside prebiotics, digestive enzymes, vitamins, minerals, botanical extracts, and specialty formulations targeting gut, immune, cognitive, and demographic-specific health needs, sold through a direct-to-consumer e-commerce storefront with healthcare practitioner endorsement.

Product overview

Klaire Labs is a professional-grade nutraceutical brand offering a diversified portfolio of hypoallergenic supplements under the SFI Health parent company. The product lineup centers on the Ther-Biotic line of probiotic supplements (including Synbiotic, Complete, Women's, Kid's, and Senior Formula variants), complemented by offerings across vitamins and minerals, botanical combinations and extracts, enzymes, lipids and essential fatty acids, amino acids and proteins, antioxidants, and accessory nutrients. Products are organized by health category (Neurodiversity Support, Women's Formulas, Immune Health, Cardiovascular Support, Gastrointestinal, Memory/Mood/Sleep, Healthy Aging) and product type (Gut-Brain Axis, Cognitive Health, Microbiome Health, Wellbeing). The company emphasizes hypoallergenicity, product purity, and rigorous quality control across its 50-year history.

Differentiator

Problem solved

Functional benefit

Brands

• Ther-Biotic: Probiotic product line including Ther-Biotic Synbiotic, Ther-Biotic Complete, Ther-Biotic Women's Formula, Ther-Biotic Kid's, and Ther-Biotic Senior Formula.

Products and services

• Ther-Biotic® Synbiotic (V777) A synergistic, high CFU probiotic supplement containing 7 probiotic species plus a low FODMAP Certified™ prebiotic, designed to nourish and balance gut microbiome, support respiratory function, and boost the immune system. Sold as 30 capsules at $49.99 USD directly to consumers and practitioners via the SFI Health US e-commerce storefront.
• Ther-Biotic® Complete (V775-06) Comprehensive microbiome support supplement providing both innate and acquired immunity support while strengthening intestinal epithelial barrier integrity. Sold as 60 vegetarian capsules at $52.99 USD directly to consumers and practitioners via the SFI Health US e-commerce storefront.
• Ther-Biotic® Women's Formula (K-TWF) A 10-probiotic species formula delivering 25B CFU blend designed to promote vaginal comfort, healthy bacterial and yeast balance, support acidic vaginal pH, and reduce occasional vaginal itching, discomfort, or discharge. Sold as 60 vegetarian capsules at $54.53 USD via the SFI Health US e-commerce storefront.
• Ther-Biotic® Kid's Children's Chewable (K-TCC) A child-friendly probiotic supplement with 8 probiotic species delivering 25B CFU, natural cherry flavor, designed to support healthy gut function, skin health, and immune health while soothing occasional tummy troubles such as constipation, diarrhea, and abdominal discomfort. Sold as 60 chewable tablets at $54.51 USD via the SFI Health US e-commerce storefront.
• Ther-Biotic® Senior Formula (K-TSR) Maximum probiotic support formula for individuals over 60, containing 10 Lactobacillus and Bifidobacterium probiotic species in a clean, hypoallergenic format. Sold via the SFI Health US e-commerce storefront.

Quantifiable outcome

• Ther-Biotic Women's supports healthy vaginal pH and bacterial/yeast balance with multi-species probiotic diversity
• +2 more outcomes

Segments9 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Scale indicators1 record

Recent moves1 record

Expansion highlights3 records

Direct peers

• Pure Encapsulations: Pure Encapsulations is a practitioner-grade hypoallergenic supplement brand that competes head-to-head with Klaire Labs in healthcare professional channels. Both brands emphasize purity, free-from formulations, and clinical-grade positioning with overlapping probiotic and digestive health SKUs.
• Designs for Health: Designs for Health is a professional-channel supplement company selling directly to practitioners, mirroring Klaire Labs' GTM motion. Their portfolio overlaps in probiotics, enzymes, and condition-specific formulations targeting similar customer segments.
• Metagenics: Metagenics is a practitioner-channel nutraceutical brand offering probiotics, gut health, and condition-specific formulations analogous to Klaire Labs' Ther-Biotic line. Both rely heavily on healthcare professional recommendation and emphasize clinical-grade quality.
• Integrative Therapeutics: Integrative Therapeutics is a professional-grade supplement brand sold through healthcare practitioners, with probiotic and digestive health offerings that directly overlap Klaire Labs' Ther-Biotic portfolio. Both target the same practitioner-recommended sales model.
• Thorne: Thorne is a premium supplement brand serving both practitioners and DTC, with strong credibility in microbiome, gut health, and sports nutrition. Comparable to Klaire Labs on premium positioning, purity standards, and DTC-plus-practitioner channel mix.
• Culturelle: Culturelle is one of the most recognized DTC probiotic brands globally, competing in the same digestive health category as Klaire Labs' Ther-Biotic line. Both emphasize clinically-studied probiotic strains for gut and immune health.
• Jarrow Formulas: Jarrow Formulas is a science-focused supplement brand with a broad probiotic line (including shelf-stable and women's formulations) sold through natural product and practitioner channels. Comparable to Klaire Labs on probiotic category breadth and channel strategy.

Broad incumbents

• Garden of Life: Garden of Life (owned by Nestlé Health Science) is a broad-line supplement brand with a significant probiotic sub-line (Dr. Formulated) that overlaps Klaire Labs' portfolio. As a large incumbent, it competes across multiple channels including mass retail where Klaire Labs does not play.
• NOW Foods: NOW Foods is a large incumbent supplement manufacturer offering an extensive probiotic and enzyme line at value price points. Comparable to Klaire Labs on product category but operates at a fundamentally different scale and channel mix.

Emerging players

• Seed: Seed is a DTC-native synbiotic brand that has redefined premium probiotic positioning with subscription models and clinical storytelling. Comparable to Klaire Labs on the Ther-Biotic Synbiotic product concept and subscription GTM, though Seed is consumer-direct only and lacks the practitioner channel.

Market position

Strengths1 record

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/klairelabs
• Facebookfacebook.com/klairelabs

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Klaire Labs