Homemade Rosemary Peppermint Shampoo Ingredients 1/2 cup castile soap 1/2 cup distilled or filtered water 16 drops Rosemary essential oil (buy here) 2 drops Peppermint essential oil (buy here) Directions Add the castile soap to a container with a flip top and then add the Rosemary and Peppermint essential oils. Finally, add the filtered water. and your done! To Use Apply a few nice squirts on your hair and shampoo and rinse normally. Please follow and like us:Share this:TweetPrintEmailLike this:Like Loading... Related Leave a Reply Cancel Reply Your email address will not be published.CommentName* Email* Website Notify me of follow-up comments by email. Notify me of new posts by email.