What is the purpose of a cool-down period in chemical services?

The purpose of a cool-down period in chemical services is to stabilize the hair's structure after processing. When chemical treatments, such as perms or hair coloring, are applied, they alter the hair's protein structure. After the application, the hair often needs time to cool down to allow the bonds to set and become more resilient. This cooling period helps the hair regain its strength, ensuring that the changes made during the chemical process are effective and stable. By allowing the hair to stabilize, the risk of damage is minimized, leading to better overall health and appearance of the hair post-treatment.