Sinofresh Healthcare (fka SFSH)

[rru2s]

Just starting my DD on this one:

From company website, the active antimcrobial ingredient is Eucalyptus globulus, or Eucalyptus oil:

http://www.sinofreshproducts.com/nasal_mist_ingredients.html

Sigma Aldrich cites studies that show Eucalyptus oil exhibits antimicrobial properties but doesn't say whether required concentration for antimicrobial action is within or above concentrations which are safe for humans (the concentration in SinoFresh is very dilute):

http://www.sigmaaldrich.com/life-science/nutrition-research/learning-center/plant-profiler/eucalyptus0.html

However, the NIH's official MedlinePlus online database is more skeptical and rates Eucalyptus oil as "insufficient evidence to rate effectiveness":

http://www.nlm.nih.gov/medlineplus/druginfo/natural/700.html

Here are two in-vitro study that showed there is an effective concentration range for inhibition of bacterial cultures, not sure how concentrated that is compared to the doses in SinoFresh (important as to whether levels sufficient to actually work are safe for inhalation or not):

http://www.academicjournals.org/ajpp/PDF/pdf2008/Dec/Ghalem%20and%20Mohamed.pdf

http://www.ncbi.nlm.nih.gov/pubmed/20727725