Klaire Labs / SFI Health: hypoallergenic supplements for sensitive people

Hypoallergenic supplement brands

🏷️ Klaire Labs / SFI Health: hypoallergenic supplements for sensitive people

A brand that literally "grew" out of allergology: the story of nurse Claire Farr since 1969

Klaire Labs is a hypoallergenic supplement brand now developed within SFI Health. Its hallmark is attention to ingredient purity for sensitive people.

Key idea: the brand was born from the personal need of nurse Claire Farr, who suffered from severe allergies. The philosophy is clean pharmaceutical-grade formulas without unnecessary ingredients, dyes and common allergens.

🔬 Who they are

Klaire Labs is an American manufacturer of hypoallergenic supplements, founded in 1969 by registered nurse Claire Farr. In mid-life she developed severe allergies and environmental sensitivities. Standard supplements with fillers and synthetic ingredients did not suit her, so she began creating her own clean formulas at home in Carlsbad, California.

Claire was among the first to buy pharmaceutical-grade raw materials, avoiding common allergens and extra ingredients. Her products caught the attention of the medical community, including well-known advocates of complementary medicine. A personal problem grew into a pioneering line of clean, well-studied probiotic strains — today the brand is part of the SFI Health group and remains the leading professionally distributed probiotic line in the US.

The essence: Klaire Labs was created with allergology experience in mind and is designed for people with food sensitivities. The "purity, potency, performance" principle — minimal extra ingredients and the cleanest studied strains.
YearEvent
1969Klaire Labs founded (Carlsbad, California)
1983First Ther-Biotic probiotic
2004Company sold to ProThera
2013ProThera acquired by Soho Flordis International (SFI)
2017New cGMP plant in Reno, Nevada
Interesting: Klaire Labs is a US probiotic pioneer — it launched its first probiotic Ther-Biotic® back in 1983. Products are mainly sold through practicing clinicians.

📜 History

The brand was founded in 1969 by Claire Farr, a registered nurse. In mid-life she developed severe allergies and environmental sensitivities. Standard approaches did not help, so she created her own clean supplements at home in Carlsbad, California.

Claire was among the first to buy pharmaceutical-grade raw materials, avoiding fillers and synthetic ingredients. Her products caught the attention of the medical community, including well-known advocates of complementary medicine.

Data: Claire's products were supported by Theron Randolph (MD), Abram Hoffer (MD, PhD), Bernard Rimland (PhD) and William Crook (MD).
YearEvent
1969Klaire Labs founded (Carlsbad, California)
1983First Ther-Biotic probiotic
2004Company sold to ProThera
2013ProThera acquired by Soho Flordis International (SFI)
2017New cGMP plant in Reno, Nevada
Read also: about probiotics and health — see our brand reviews in the "Brands" category.

🌿 Philosophy

The brand philosophy is a minimum of unnecessary ingredients. No dyes, fragrances or common allergens in the formula.

Claire Farr built formulas on the principle of "purity, potency, performance". She emphasised single-ingredient formulas so sensitive people know exactly what they take.

  • Minimum of ingredients.
  • No dyes.
  • No fragrances.
  • Fewer allergens.
Data: the "less is more" approach: only pharmaceutical-grade raw materials of maximum purity and bioavailability.

🧪 Products

LineWhat
Ther-Biotic®Probiotics (leading professional line)
BioSpora™Spore-forming probiotics and immunity
EnzymesDigestion
Vitamins and mineralsBasic support
Ther-Biotic Complete data: a broad spectrum of 12 probiotic species on an inulin base. 25 billion CFU per capsule and 100 billion CFU per 1 g of powder. InTactic® protection for maximum bacterial viability in the gut.
Important: the strength is probiotics and enzymes. That is what specialists value the brand for.

🛡️ Purity and quality

The brand is known for quality control and testing for contaminants. This matters for people with food sensitivities.

Since 2017 production runs at a modern cGMP plant of over 75,000 sq ft in Reno, Nevada, with expanded scientific resources and quality control tools.

  • Quality control.
  • Contaminant testing.
  • For sensitive people.
  • Clinician trust.
Important: purity is the brand's main argument. Formulas are evaluated to strict Klaire standards to minimise unnecessary fillers and hypoallergenic ingredients.

💡 Who it suits

  • People with food sensitivities.
  • Those who want probiotics.
  • Those who need enzymes.
  • Fans of "clean" formulas.
Tip: this is a premium segment — the price is above average, and products are mainly distributed through clinicians.

Pros and cons

ProsCons
High formula purityPrice above average
Leading probioticsSales through clinicians
For sensitive peopleLimited availability
Specialist trustNot for everyone by price
Conclusion: Klaire Labs suits those who value formula purity and are ready to pay for premium hypoallergenic supplements, especially probiotics.
❓ Frequently asked questions
What is Klaire Labs?

An American hypoallergenic supplement brand founded in 1969.

Who founded the brand?

Claire Farr, a nurse, in 1969 due to her allergies.

What is SFI Health?

A group of companies (formerly Soho Flordis International) that Klaire Labs joined in 2013.

What is the brand known for?

Ingredient purity, hypoallergenicity and leading Ther-Biotic probiotics.

What products are available?

Probiotics, spore-forming probiotics, enzymes, vitamins.

Who is it for?

People with food sensitivities and those looking for clean probiotics.

Is it an expensive brand?

Yes, it is a premium segment.

Where is it sold?

Online and through practicing clinicians.

What is best to buy?

Ther-Biotic probiotics and enzymes — the brand's strength.

Are there dyes?

No, that is the point of the brand's hypoallergenicity.

Who is it not for?

Those looking for budget alternatives.

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