Our quality control department control the products from package to finished items.
step 1 check package quality.
Make sure:
Cleans bottle, nice outlooks of bottle/package, strong box, cartons.
step 2 control prodcuts quality when produce:
make sure:
the producing progress is clean, antibactrias, nice outlooks of the finish items.
Package match customer's required.
step 3 test finished items.
2-3 pieces finished items from each lot should be tested in lab to make sure good quality.