Hi anaisbeauty , I can see where you are coming from,
and I think maybe at home you could offer this service on your models for free but only if they pay for any products that you may need .
However if it was within the actual salon I think that there should be a small charge for models as there is electricity laundry and water bills to pay,
also if there are any products used they will also need to be covered :hug: x