The answer is “yes”, but it is only partly true. Head lice indeed can be destroyed by heat. So when you use a temperature higher than 104 degrees Fahrenheit, lice will die. With a hair straightener, you can kill adult head lice located on your hair. But you won’t get rid of nits because they lay eggs very close to the scalp. Using heating devices close to the scalp can be very dangerous. Doing so, you can as well damage hair follicles which won’t restore for a long time.
Does hair straightener kill lice?