what type of wave uses thioglycolic acid or its derivatives with ammonia and procceses the hair without heat?

Cold Waves

Explanation:

Cold Waves -

This type of wave are used to curl the hairs without the application of any type of heat and along with it, thioglycolic acid or any of its derivatives are used along with ammonia, during the process of curling.

The cold wave use some small or medium size plastic curlers and obtaining a result of medium curls which are more prominent when they are wet.

For better results hair products like mousse, setting lotions are applied.