美国采购需求：GMP级注射用Retatrutide，人用肽，购买注射用Retatrutide，高品质注射用肽，GMP认证肽，在线购买Retatrutide

I'm interested in getting details about your pricing for the vials I'm considering for my upcoming orders. Could you provide the cost per vial, as well as any discounts for bulk purchases? Additionally, if there are variations in pricing based on different quantities, I'd like to understand those options as well. Aside from the cost, could you also share any relevant information regarding shipping fees, lead times, and minimum order quantities? This info would help me make an informed decision and plan accordingly for my inventory needs. Thanks!