美国采购需求：活性药物成分、发酵产品、食品添加剂、原材料

I'm looking to get some details on a selection of peptides. Could you please provide availability and pricing for the following items? I'm interested in smaller quantities for initial orders, so let me know what you have in stock. Additionally, if there are any bulk purchase options or discounts available, I'd love to hear about them. Looking forward to your prompt response on this. Thanks!