I've been eying that Spectrum Potion for a while now, and it seems like the shop never restocks unless something new is added from the news, but it looks like only that item is stocked.

it's usually announced in the news when the potions restock in the token shop.

Large-scale Token Shop restocks (like the kind that include potions) typically only happen once every few months.

Ok, so its random? I think I'd rather just buy a Spectrum Potion, lol. Oh, and thanks for answering! :)

HI this is the group u want to join for token shop restock notifications. http://www.subeta.net/forums/group/258 and there are other groups u may want to look at http://www.subeta.net/forums/group

Thanks guys for answering the question! I'd been wondering this myself. And I think I'll join that group :)