Chemical straightening is a more permanent way of straightening the hair, which can keep the hair straight for longer. It involves a trained hair stylist applying chemical formulas to the hair and then waiting for it to develop, in much the same way as a perm. Recently, new methods of chemical straightening have emerged which are better for the hair, like the Brazilian blow dry. However, some people may feel that this is not as effective for all hair types.
You should consider chemical straightening very carefully. It will not work for all types of hair, so speak to your stylist about whether it will be suitable for you. It can also be very damaging, so is usually not used on fine hair. Damage may include breakage and very dry ends that need to be trimmed.
If you decide against chemical straightening, other methods of straightening include blow drying and using straightening irons.