I further checked wit Malaysia post who gave the same answer that my item that was shipped via USPS was unable to track. It will only be treated as a normal mail. It is not like previously that even as a international flat rate shipment, we are able to track the item from US to Malaysia.
Thus, I opened a dispute via ebay or PayPal. After 2 weeks, finally I get the answer. The answer from PayPal was rather disappointed me as a buyer. They informed me that my item still in transit. What????After 2 months my item is still in transit? I am not staying in moon or another planet!!How can you said my item still in transit. I suspect my item was send to a wrong place and that why I request a refund. Obviously, the protection to the buyer claim by PayPal is a joke. It is just a propaganda. They are like the seller, just shun from responsibility and ask you to wait. Isn't it when an item send to a wrong place or even wrong country, the item will always in transit. If the item was sent to Maldives, ho can the postman find the address of Kuala Lumpur?
I will consider myself unlucky in this transaction. I will stick with Amazon instead of trying others seller. I do not want to take risk and cost me lost in money. I do advice those ho purchase minoxidil online, made your order at least 2 months before you finished your stocks. Although, for those successful transaction that I experience needs only 2 weeks to receive my item.