I am often frustrated by scientific claims made by companies about supplements, foods, and beverages. Not because the claims are wrong, but because the claimants undertake poor-quality science and overstate claims, or mistreat the ingredients so that they lose their bioactive properties.
For these reasons, we only partner with the highest-quality providers of bioactives and scientific information, such as ViBeri and BLIS Technologies.
Since our inception, we have included oral probiotics BLIS K12 and BLIS M18 in our lozenge products. We include these probiotics at an appropriate level to ensure both efficacy and stability. We’ve always believed in the power of probiotics to protect your health.
We are pleased to share that the use of BLIS K12 and BLIS M18 has been granted a patent by the Australian Patent Office (June 2025, AU2021248774B2) for their action in protecting against viral respiratory infections, including SARS-CoV-2 (the virus that causes COVID-19) and Influenza A & B.
- This patent recognises the science showing that daily use of BLIS probiotics can:
- Support the body’s defences in the mouth and throat, the first entry point for respiratory viruses.
- Reduce the likelihood and severity of viral infections, like COVID-19 and the flu.
- Offer a safe, natural adjunct to traditional medical approaches by strengthening your microbiome’s protective shield.
Outside of the recently granted patent, which is virus-focused, the BLIS oral probiotics we include in our Zestt lozenges also offer protection against:
- Streptococcus pyogenes (strep throat)
- Streptococcus pneumoniae (pneumonia)
- Haemophilus influenzae (ear infections, bronchitis)
- Moraxella catarrhalis (middle ear infections)
- Candida albicans (thrush/yeast overgrowth).
In taking Zestt Breathe+ lozenges, which include anthocyanins, zinc and quercetin, you build a multi-action defence by:
- Down-regulating inflammatory cytokines.
- Promoting the production of M2 macrophages, a type of white blood cell that helps to clear infections and repair tissue.
- Promoting oxygen flow throughout the respiratory system and the body.
- Minimising tissue damage by free radicals through antioxidant activity.
Check out Zestt Breathe+ lozenges, with BLIS K12
Our other lozenges also contain BLIS probiotics:
- Zestt Oral+: BLIS K12 and BLIS M18
- Zestt Cardio+: BLIS M18
- Zestt Gut+: BLIS K21