An Exploratory Preclinical In Vivo Pilot Study Evaluating the Hair Growth-Promoting Effects of Rosmarinus Officinalis and Ricinus Communis Combination

    January 2026 in “ BioMed Research International
    Alex Mathenge, Elizabeth Odongo, Ruth Mauti, Fednard Osee
    TLDR The combination of rosemary and castor oils may promote hair growth in mice.
    This preclinical study investigated the hair growth effects of Rosmarinus officinalis (rosemary) and Ricinus communis (castor) oils, both individually and combined, using 15 mice divided into five groups. The combination of rosemary and castor oils resulted in the highest hair density and regrowth scores, comparable to 2% minoxidil, a known hair growth treatment. Rosemary oil alone also promoted significant hair growth, while castor oil did not differ from the control. These results suggest potential synergistic effects of the combined oils, but further research with larger sample sizes is needed to confirm these findings.
    Discuss this study in the Community →

    Research cited in this study

    12 / 12 results