A new review suggests that garlic extract may have antimicrobial power similar to common chemical mouthwashes. Researchers found that concentrated garlic rinses can reduce oral bacteria at levels close to chlorhexidine — a widely used antiseptic that often causes staining and unpleasant taste. Garlic caused more temporary burning or odor, but it also seemed to stay active longer after use.
The review looked at clinical studies using garlic mouthwash in everyday settings. Results varied depending on the concentration and how long people used the rinse, but stronger formulas showed clear reductions in plaque-related bacteria. Side effects such as mild burning or strong smell were reported, but they were generally less severe than those from some synthetic mouthwashes.
Experts say interest in natural antimicrobials is growing as people look for gentler oral-care options and ways to reduce microbial resistance. Garlic’s antibacterial and antifungal compounds have been known for years, but most studies so far have been small. Larger clinical trials are needed to know whether garlic extract can reliably match or replace chemical mouthwashes in routine dental care.
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