Putting them in checked package is simpler and safer.
In theory you cannot leave such bottles on the original packages, but if you do not have other liquids, you may interpret that the original packages is the transparent bag. Often you can pass the security check in similar cases: security staff can see the interior (and check which kind of liquid and size).
Personally, sometime I took liquids supplements on original package (very small bottles in carton package), and nobody ever complained. But I'm ready to trash away the small box. So this could be your plan B: try with original package, and be ready eventually to open the box. Personally I find that keeping the original package is simple for the custom on arrival.
You may notice that many people does security check in the wrong way. But do not worry, they will not put you in jail nor trash your item. You may need to do again the check with proper methods (so get ready also a correct plastic bag to put your items).
And BTW, your box could be seen as transparent and resealable bag. It is a valid interpretation (but never argue about this: if they tell you it is not valid, comply with they interpretation).
Note: if you buy such item at airport (duty free), things can be a lot simpler: you will have it in a sealed bag with some labels. Such sealed bag is recognized in many airports (in case of transfer flights), without worrying about packing and dimensions.