have one test site marked on each forearm, forehead and upper back.
Each site is circular and marked with a skin marker. Product is
applied to each treatment site. After application, all subjects
are situated in a controlled "heat room". The conditions
of the room is sufficient so that all panelists start to sweat.
After 5, 15, 30 and 60 minutes, each site is evaluated for migration
by using a ruler to measure how far, if at all, of the product migrated
outside of the test sites.