- Potato peel rinse: Take around five potatoes and peel them. Put the peels in a cup. Take a pan and pour two cups of cold water then add the peels. Bring to a boil, lower the heat and simmer for five minutes. Place the pan away from stove and then let it cool. After it completely cools down, strain the liquid out and save it. Add a few drops of sandalwood oil for aroma and pour the cool mixture into a glass container with tight fitting lid. Use it as a hair rinse after washing your hair.