To make this homemade egg shampoo, you will need the following: 1 egg yolk; one tablespoon olive oil; a cup of warm water; To prepare this egg shampoo, the first thing to do is to separate the yolk from the clear, as it will only need the yolk (the orange part of the egg). I never thought it could be used simply like that. I love using egg yolks on my hair, and I was looking into egg yolk shampoos when I found your article.