Itegboje, J. 2025. An In-Depth Analysis of Sustainable Sourcing Practices and Their Environmental Impact in the Cosmetics Industry: A Case Study of L’Oréal USA and Unilever USA. American Journal of Social Development and Entrepreneurship. 4, 1 (Apr. 2025), 68–84. DOI:https://doi.org/10.54536/ajsde.v4i1.3573.