The phrase signifies a specific set of instructions detailing how to create a topical treatment for hair, utilizing rosemary as a primary ingredient and oil as the carrier substance. This encompasses the precise quantities of each component, the necessary preparation steps, and the application methods.
Formulations of this nature are increasingly recognized for potential advantages to hair health. The presumed benefits can include stimulating hair growth, strengthening hair follicles, and potentially reducing scalp inflammation. Historical use of rosemary in traditional medicine supports the ongoing interest in its application for cosmetic and therapeutic purposes.