Postbiotic Immune

A premium blend of postbiotic yeast for food and beverage products designed to support your immune system and help protect against oxidative stress.

Unleash the immunity power of Postbiotic Immune, a dynamic trio of whole-cell postbiotic yeast strains:

  • Kluyveromyces marxianus ABB S8
  • Saccharomyces boulardii ABB S3
  • Saccharomyces cerevisiae ABB S15 (a strain with organically bound selenium) 

How does Postbiotic Immune help?

  • Improves immune system response
  • Limits virus progression
  • High selenium bioavailability for optimal absorption
  • Promotes antioxidant activity

Strengthen your product health claims

This postbiotic blend supports the inclusion of the following health claims for your product:

  • Contributes to the normal function of the immune system
  • Helps protect cells from oxidative stress
  • Essential micronutrients

Why choose Postbiotic Immune?

  • Ensures optimal stability when combined with other formulations and products
  • Exceptional stability: two-year shelf life preserved into final product

Science supporting Postbiotic Immune

The following effects have been observed in test subjects after taking 2 doses (93mg) of Postbiotic Immune for 28 days.

1.T lymphocyte proliferation increased by 55%

T lymphocytes are a type of white blood cell which help protect our body from infection. 

2. The total number of T-helper lymphocytes increased by 59% in response to an induced challenge

T-helper cells trigger the body's immune response

3. Superior promotion and stimulation of natural killer cells

Natural killers cells destroy infected cells in order to limit the spread of an infection

4. Increased selenium levels in plasma samples

Selenium is an essential micronutrient for the proper functioning of the immune system.


Postbiotic Immune is a blend of three whole-cell postbiotic yeast strains intend for use in Food and Beverage applications:

  • Kluyveromyces marxianus
  • Saccharomyces boulardii
  • Saccharomyces cerevisiae


One 85mg dose of Postbiotic Immune contains 8.5micrograms selenium, equivalent to:

  • 15% of your recommended daily intake
  • 250ml whole milk
  • 150g cooked lentils

Regulatory and certifications

  • Compliant with European & US regulations
  • Granted Qualified Presumption of Safety (QPS) by European Food Safety Agency (EFSA)
  • Food Safety System Certified: FSSC 22000
  • Certifications: Halal, Kosher, gluten-free, lactose-free, allergen-free

Why choose ABbiotek Health?

  • We offer ground-breaking microbiome solutions, aimed at creating opportunities for our clients
  • Our solutions are founded on evidence-based science, blending traditional fermentation methods and incorporating bacteria, yeast, and enzymes
  • We collaborate closely with medical experts to develop natural-first solutions that complement drug therapies
  • Leveraging our advanced supply chain infrastructure, we efficiently serve customers worldwide


1. Castellana JC, Gazulla MT, Meissner J, Merino M, Mullor JL, et al. (2024) A Three Strain postbiotic Mix Improves the Immune System Function After Oral Intake for 28-Days. J of Nutraceuticals and Food Sci Vol.9 No.1: 39 



This website is intended to provide information about ABbiotek Health’s ingredients, used in various food/dietary supplement products around the world. It is only intended for business to business and to provide information to food/dietary supplement professionals and is not designed for the general public.  Statements used on this website have not been evaluated by the Food and Drug Administration or any other competent authority. Products are not intended to diagnose, treat, cure or prevent any disease.