To rinse the shampoo thoroughly,

pu1. It's almost impossible to wash 100% with water because shampoo has a lot of coatings like silicon in it's almost impossible. I just use a weak shampoo or a non-silicon shampoo

2017-11-13

OK

pu2. The shampoo ingredients remain in the hair even after rinsing, making your hair shiny and glossy, so if you rinse it all off, there is no point in using the shampoo

2017-11-13

OK

pu3. You can just use soap. I'm so used to using shampoo, but washing it with soap is actually better for your health.

2017-11-13

OK