Antibacterial and Antiviral Benefits
Probiotics have always been said to have had antiviral components that can help our bodies fight off bad bacteria and viruses. Research has shown that lactic acid has antimicrobial properties in fermented foods.
Lactic acid bacteria may also help alleviate symptoms of viral diseases, such as upper respiratory tract infections or diarrhea. One study shows that individuals who take probiotics can reduce antibiotic-associated diarrhea by 42%. It can also treat vaginal, gastrointestinal, and oral infections.
How it works is that lactic acid bacteria create low-molecular-weight antimicrobial substances such as hydrogen peroxide, organic acids, pyrrolidone-5-carboxylic acid, diacetyl, and reuterin. Diketopiperazines, hydroxy derivatives of fatty acids, and phenyllactate are several antifungal agents that lactic acid makes as well.
With the rise of more and more infectious diseases, doctors are turning to lactic acid for its antibacterial and antiviral benefits to see how it can help the body combat illnesses. Metabolites such as lactic acid and hydrogen peroxide are being studied more in-depth to understand their ability to decrease viral loads.
Because of the antibacterial properties that lactic acid contains, it's commonly found in disinfectants like hand sanitizer, dish soap, and household cleaning products.
You may also notice it's a core ingredient in popular skincare treatments and products. That’s because lactic acid helps with cell turnover. Which can reduce signs of aging, prevent deep wrinkles from forming, and provide you with a smoother complexion.