Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Xylitol is a sugar alcohol widely used in oral care products such as chewing gum, toothpaste, and mouth rinses. Its primary mechanism in supporting or treating halitosis (bad breath) is based on its ability to inhibit the growth of oral bacteria, particularly those responsible for producing volatile sulfur compounds (VSCs) that cause malodor. Multiple clinical studies have shown that xylitol can reduce the levels of Streptococcus mutans and other bacteria in the oral cavity by disrupting their ability to adhere to tooth surfaces and metabolize sugars. This reduction in bacterial load can indirectly decrease the production of VSCs and, thus, help to control halitosis. Systematic reviews and randomized controlled trials (RCTs) have demonstrated that xylitol-containing chewing gums and mints, when used regularly, can reduce oral malodor, especially when compared to placebo or sucrose-containing products. However, the effect is often modest and may be more pronounced when xylitol is combined with other antimicrobial agents or used as part of a broader oral hygiene regimen. While the evidence does not suggest xylitol is a cure for halitosis, it supports its use as a supportive agent in reducing oral bacterial activity and improving breath freshness. Therefore, the scientific evidence for xylitol's role in managing halitosis is moderate but not definitive, meriting a rating of 3 out of 5.

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Other ingredients used for Halitosis

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