Sunitha Chintala 2026. Formulation and Physicochemical Evaluation of a Polyherbal Shampoo Containing Manilkara zapota Seed Oil for Natural Hair Care Applications. International Journal of Pharmaceutical Research and Medicinal Plants. 2, 4 (Aug. 2026). DOI:https://doi.org/10.61280/journalmedicinalplants.v2i4.320.