I only used DHL Express as the courier when I ordered from Iherb. I can track it until it reach my door steps. Only took 7-8 days to reach my door steps,  DHL will make sure it is delivered. It is expensive but very Safe.

Using Delivery by Local Post (Globalmail) is risky, out of 10 order, 1 or 2 may goes missing. Tracking is limited, DHL will wash hand & said they already passed it to Pos Malaysia (Local Post). It is cheap (even FREE) but it is risky.