I transport lots of unopened/unused commercial and privately-made soap bars on my TATL flights and on my domestic US flights, and sometimes do so with it in carry-on only luggage. I would just bundle it up in an organized stack in plastic bags and not worry about it with regard to airport security screening. Sometimes they may swab down the bag, but most times they do nothing. The more organized the bag — and I would definitely not suggest layering it flat across a whole bag — the less likely the screeners seem to be in opening the bags. I’m speaking of carry on luggage and soap bars in it.

What ingredients are in the toiletry products made by the OP?