Ticks... prevention before cure

What products (preferably industrial Veterinary strength) are people using whilst hiking multi day off trail in the Limpopo Mpumulanga bush?

Ive used Bayticol Tabbard, spray, clothes wash and (My favourite) the Lotion, but in the Timbavati, it wasn’t up to the task at hand (admittedly that was summer) so looking to gather insight from you good folks.

Ive also used HHL Vital Protection for my wife and kids clothing to comprehensively protect them from small bitey things. Some went on my sleeping bag and on Fish River Canyon my mate was eaten alive around his ankles and I wasnt, so Im guessing thats a good thing.

Grateful for what you use and where to get it