These have been found to last for up to a whole hour when exposed to sufficient amount of light; you surely would get your play out of it.
Absolutely. Depending on the type of the dildo, all our glow in the dark dildos are made from body safe materials that do not have any medical or health hazards.
You do not have to wash it off immediately; all you need to do is to expose it to light for a while. Any kind of light – direct sunlight, artificial light is also suitable.
Yes, it is possible to use water based lubricants in order to reduce the friction.
Wash it with a mild soap and water or the toy cleaner and allow it to dry up before placing them away.