Nah, it's mostly some kind of light mineral oil with some lemon scent added. The stuff in the Gibson bottles is the same stuff. But, whatever blows your skirt up (and sucks your dollars)I'm sure you all know this but NOT pure lemon oil. Lemon oil for guitars isn't lemon oil. See all the other threads on this subject for more info.
Why is that sillier than any other oil?haha yeah I googled it and there are people using wd-40 on the boards!!!
I think that's only on the shortlived cast iron fingerboard, which was one for Gibson's experiments between the Richlite, Poorlite, and compresed cardboard fingerboards.Maybe they play steel guitar??