To Do-it-yourself your individual diluted rosemary oil hair procedure, Dr. Doyle suggests mixing two tablespoons of your carrier oil of choice (she suggests jojoba) with two to a few drops of rosemary oil. Use the combination towards the scalp and “leave on for one hour prior to washing,” Doyle provides. https://paxtonrsyph.timeblog.net/63193815/an-unbiased-view-of-best-hairspray-drugstore