Above 50 ℃.
The temperature of the hair dryer is uncontrollable. In a short period of time, the temperature of the hair dryer can reach more than 50 ℃, so when using it, you must carefully control the temperature and time, find the best distance for the skin to withstand the hot wind, and avoid burning the skin.
Damage caused by improper use of hair dryer:
1. Overuse of blower
Excessive use of hair dryer will make hair more and more dry, and damage to hair will be greatly increased.
2. The blower blows from bottom to top
The same is the use of hair dryer precautions. Blowing the hair dryer from the bottom to the top will open the hairlin pieces, which is not only the cause of dry hair, but also the problem of fluffy hair.
The hair scales are open. Blowing along the direction of hair growth will make the hair scales close. If blowing backward, the hair scales will open, and the more you blow, the more fidgety.