on knees out of bathtub by hand water and camera perfectly behind/above your head. All work is for obtain hair perfectly smooth without tangles.Rinse is more important than shampoo. First long rinse from the nape of neck to forward, no tuft of your hair must remain dry. Then shampoo rubbing your head always from back to forward without ruffling too your hair and under the ears, never covering the ears and compacting it forward squeezing the sides .Second long rinse with your head well bent down ( the chin touching the chest). Then brush your wet hair from back to forward (always under the ears... Show more