i am from China,you know,Chinese goverment is very fuck.i order 50 grams DXE powder from EU.i had recevied envelops including 10-20 grams powder safely in the past .but the vendor package the powder in the box this time because the amount is 50 grams.so i felt a little worried because i didn't know how would the custom check my box.
Depends on your country's customs regulations, but if your vendor knows what they're doing, you shouldn't have any issues. Usually packs shipped in boxes (especially going to china) have more thoughtful stealth involved.