Yes but again it isnt ideal, clients forget what they've sprayed where, just how much deodorant they have put on, or their watch/necklace that has spread their perfume around the wrist/neck. Then there is hair spray on the shoulders, hand cream, etc
Ive had all these and many more when I was salon based and customers were just lying saying they had done prep, or nipped to the sink for a 'quick wash'. When these areas turn green it is pretty obvious what has happened but bar stopping letting the client go and have a shower there is nothing you can do.
Ive been offered to do ladies pamper evenings at schools and I have said only if clients pre book and I can have their contact details to ensure correct prep. As it really is key with tanning.
Try the wipes, try the quick sink wash, but in my personal experience it only causes issues with the end result.
Sometimes its best to learn from your own trial & error though.
Xx