韩国采购需求：天然精油、卡斯蒂利亚皂、护手霜、护肤品

I'm interested in learning more about your castile soap, specifically the complete list of ingredients used in its formulation. Understanding the components is crucial for me, as I want to ensure it aligns with my quality and ingredient standards. Could you also provide information on whether the ingredients are sourced sustainably or if there are any certifications associated with them? This info would greatly help in making an informed decision regarding a potential purchase. Thanks!