Wet your hair thoroughly. Place a walnut-sized amount of shampoo in the palm of your hands and rub your palms together to work it into a lather. Apply the shampoo to your scalp, then massage, gradually adding small amounts of water. Finish by rinsing thoroughly until your hair squeaks between your fingers.
In town, you need to shampoo 2 to 3 times a week; one application is enough.
In the country, you need to shampoo 1 to 2 times a week; one application is enough.
If you prefer to wash your hair once a week, two consecutive applications are necessary to thoroughly remove dust, pollution, dry shampoos or styling products.