Authorities warn Guam residents not washing their hair with conditioner if a nuclear attack occurs to prevent radioactive material from sticking to the hair.
Conditioner can cause radioactive material to stick to human hair.
The recommendation is that conditioner can cause radioactive material to stick to human hair. This means that the radioactive material will remain and become trapped inside the hair follicle.
Instead, Guam residents are encouraged to use shampoo or soap and water. Unlike conditioner, these products are manufactured to not save hair.