Keep it for 30 minutes, and you wash it off with baby shampoo, or just warm water.
保持 30 分钟,然后用婴儿洗发水或温水洗净。
科普小杂文
Finally, I return to the salon to tell you that baby shampoos are just shampoos that use milder surfactants and don't have special polymers or moisturizing agents, as matter of surfact.