Research
Dr Pirjo Pärnänen (Associate Professor in Oral Microbiology, DMD, PhD) has been researching fermented lingonberry juice for over 15 years, and has conducted a number of clinical studies with impressive outcomes.
Lingora® is a class I registered medical device in the UK and the EU (EUDAMED: 06429811111004).

Results of studies are outstanding
Laboratory and clinical studies have shown a reduction in dental plaque and bleeding of the gums, and additionally antimicrobial, anti-inflammatory, anti-cancerous, and antioxidant properties. Caries-related Streptococcus mutans and candidosis- related Candida levels are reduced as well as periodontal disease- related pathogen levels. Levels of lactobacilli on the other hand are increased, which is thought to be a beneficial probiotic effect balancing the oral microbiota.
Laboratory and clinical studies have shown a reduction in dental plaque, gum inflammation and bleeding of the gums.
Additionally, Lingora alleviates the symptoms caused by dry-mouth, also known as xerostomia, by increasing saliva secretion. Saliva production is essential for maintaining good oral health. It helps wash away food particles, neutralises acids, and provides minerals that are important for tooth remineralisation. Saliva also contains enzymes that help digest food and destroy bacteria that can cause oral infections.
The research shows bacterial population of Streptococcus mutans is significantly reduced as result of Lingora® use. Streptococcus mutans is a bacterium that is a significant contributor to tooth decay.
In the figure below, Streptococcus mutans cultivation on MSB plate. Initial sample (left) and growth inhibition after 2 weeks of using fermented lingonberry mouthrinse (10 mL burst two times a day), and final sample 2 weeks after the end of use (right).
The research also shows that the level of Candida is significantly reduced after using Lingora®.
Oral Candida is a yeast that is a normal part of the oral microbiota, but can cause infections if left untreated.
Oral Candida infections can cause a variety of symptoms, such as white patches on the tongue, throat, or inner cheeks, redness or soreness in the mouth, difficulty swallowing, and cracking at the corners of the mouth.
In the figure below, Candida cultures on SDA plate. Initial sample (left) and growth inhibition after 2 weeks of using fermented lingonberry mouthrinse (10 mL burst two times a day), and final sample 2 weeks after the end of use (right).
The level of lactobacilli on the other hand is increased, which is thought to provide a beneficial probiotic effect on balancing the oral microbiota.
Simple ingredients, simple choice
With ingredients of lingonberry and water, and no additives, all-natural ingredients and vegan accreditation, you’re choosing health without compromise.
Unlike some conventional mouthwashes, Lingora® products don’t contain harmful chemicals such as chlorhexidine, hence they do not cause discolouration of teeth and are free from allergens.
Research papers
Here are a few examples of publications by Dr Pirjo Pärnänen and her peers:


