THE DIFFERENCE BETWEEN COLD WAVE AND HOT WAVE
If your permed hair is volume in wet station but little volume in dry station, this is cold wave, The benefits of cold wave are that the hair permed is easy to be made into variety of hair styles and to be maintained for a longer duration. However, chemical agents used for cold wave are harm to our hair and skin, which make our hair loss and dry.
If your permed hair is volume and rich of elastic in dry station and looks nice after combing, this is hot wave. The benefits of hot wave are that chemical agents used is friendly with our hair, and the hair permed looks natural and soft.