I suggest you have her buy you conditioner for two weeks or longer depending on how long she’s been doing it.

Why do you buy expensive conditioner?

Some people have to due the texture of their hair, or lack of natural oils- otherwise they wind up with unmanageable hair. Other people enjoy it and use it as one of their moments of self care. It doesn't really matter either way- if it's OP's conditioner, the mother could have at least mentioned she was using it on the dogs. Which, bathing dogs that often with human targeted products is a great way to fuck up the pH of their skin, easing to rashes, itchiness, flaking, and shedding.

That username is adorable!

Probably a wise investment, since you’re probably not the only one smelling your dogs. Who’s smelling you?

Put cheep shampoo and conditioner in your old Bodley and keep the new ones in your room so she doesn't use the expensive stuff

Well just a question, who paid for the conditioner ? Just cause you live at home maybe she bought it ~

Why isn’t she using dog shampoo/conditioner? Human products can be very harmful to animals