美国采购需求：天然油、卡斯蒂利亚肥皂、护手霜、护肤品

I'm looking into purchasing several items packaged in plastic containers due to their cost-effectiveness. Could you please confirm if each item comes with a creation date? It's important for me to know how long these products have been in storage before I make a decision. Additionally, do you have any information on how your storage conditions may affect the quality or shelf life of items stored in plastic? This will help me ensure I'm making a well-informed choice. Thanks for your assistance!