The method used to assess the effectiveness of a deodorant is the “sniff test” (according to ASTM E1307-09 standards).
In this test, following deodorant application, three expert judges assess the axillary odor at different time points according to the intended product claims. The armpit odor is compared to the opposite underarm on which deodorant was not applied.
“Deodorant”, “Fights bad odor”,
“Odor protection for ____ hours”