When enterung a car player gets bald, when exiting the car his hair comes back
Any more info? By any chance, do you have a script that does that? 
Search in the resources folder for anything that modifies ped components/props or reloads skins on vehicle events.
SetPedComponentVariation
SetPedPropIndex, ClearPedProp
SetPedHeadBlendData, SetPlayerModel
IsPedInAnyVehicle(), TaskEnterVehicle
i dont have a script that does that, its been doing that from the moment i installed ESX on it
we are not live yet (still building up the server with scripts) so its not an urgent matter, but i would like to see it resolved by the time we open 
ill check those things tonight after work, thx already