In this case study, participants experienced a reduction of symptoms related to SARS-CoV-2 infection and received a negative test 50% faster than the average time of negativization.

Go, C. C., et al., (2020). Potential Role of Xylitol Plus Grapefruit Seed Extract Nasal Spray Solution in COVID-19: Case Series. Cureus, 12(11), e11315.