How AB-Kefir Is Made: SYNTEK™ Symbiotic Fermentati
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AB-Kefir owes its character to how it is made. Its signature is SYNTEK™, SynbioTech's proprietary symbiotic fermentation technology that recreates the natural teamwork of kefir in a controlled, scalable process.
What symbiotic fermentation means
Most probiotic products grow each strain separately and blend the dried powders at the end. Symbiotic fermentation is different. The strains are cultured together, so they feed on one another's metabolites and behave as a community, just as they do in traditional kefir. The result is not a mixture of strains but a matured symbiotic system.
How SYNTEK™ works
During SYNTEK™ fermentation, AB-Kefir's strains exchange nutrients and signals. This metabolic cross-feeding does two things at once. It produces a broad pool of postbiotic metabolites, including organic acids, bioactive peptides, exopolysaccharides, B-group vitamins, folic acid, and amino acids, and it conditions the strains for life in the gut. See Mechanism of Action.

Stronger, steadier strains
Because the strains mature together, SYNTEK™ makes them more robust. Compared with conventional fermentation, AB-Kefir shows higher survival and viability through shelf life and better tolerance to stomach acid and bile, so more live cells and active metabolites reach the gut where they are needed.
The "AB" design: Five plus Two
SYNTEK™ ferments five core strains together. Two further probiotics, Lactobacillus acidophilus and Bifidobacterium longum, are then added to complete the formula and give AB-Kefir its "A" and "B". The result pairs the depth of symbiotic fermentation with two of the most widely studied and used probiotic species.
Why it matters for your formula
For brands, SYNTEK™ means a differentiated, story-rich ingredient: naturally symbiotic like kefir, yet standardized, stable, and easy to formulate across powder, stick-pack sachets, capsules, and gummies.
Want to see how SYNTEK™ fits your next gut-health product? Contact us!
References
- Dempsey E, Corr SC. Lactobacillus spp. for Gastrointestinal Health: Current and Future Perspectives. Front Immunol. 2022 Apr 6;13:840245. doi: 10.3389/fimmu.2022.840245. PMID: 35464397; PMCID: PMC9019120.
- Mills S, Yang B, Smith GJ, Stanton C, Ross RP. Efficacy of Bifidobacterium longum alone or in multi-strain probiotic formulations during early life and beyond. Gut Microbes. 2023 Jan-Dec;15(1):2186098. doi: 10.1080/19490976.2023.2186098. PMID: 36896934; PMCID: PMC10012958.