Preheat the hair iron to 120°C. Do not use permanent straightening iron. Release a thick strand of hair and pass the iron on it to evaporate the residual water. Comb the hair carefully to assure total smoothness. Repeat the operation with the other strands of hair till you finish the whole head.

Observations: In case you do not want straight hair, use the Curling Iron apparatus or use a brush and a hair drier.