Yadav, M.A. and Srivastava, M.S. 2026. Phytochemical Analysis, and in Vitro Evaluation of a Hair Serum Based on Rosmarinus Officinalis Leaves and Coconut Oil. American Journal of Biomedicine and Pharmacy. 3, 1 (Jan. 2026), 18–24. DOI:https://doi.org/10.51699/ajbp.v3i1.1899.