many things not only have plastic around lid to come off but a barrier after cap comes off it would be extremely time consuming to be exact in trying to repackage ...................... since Many dealers also USE the product lol ...... doubt they have the concentration.....
Basic common sense if something does not match if pills change more often then not it noted "new look " etc.
remember a medication i picked up at a pharmacy the pharmacist came to window to explain the version of drug she had is through a different manufacture and pills now are yellow did not want me to be concerned or surprised....
another friend once PU her pharmacy items went to take them that evening did not look right so instead of swallowing she looked closer at bottle .... Tech had mixed up and this bottle did not even have Patient name right .......
once again COMMON SENSE saves lives.