Hi everyone! im really new here and i am so happy i found this forum! anyway i wanted to cut plastics out of my life and start making my own shampoos, seeing that they seem easy enough (on youtube), however after a watching a few videos, i really dont understand what makes the difference between a soap and a shampoo. from what i understand these are the only 2 differences. 1. most shampoos i see have a low or no Olive Oils 2. based on what i read, the hair prefers a more acidic soap while the body prefers a more alkaline? Do teach me!