Same like this product is always out of stock every time that I visit their web site.
It could very well be that they limit the supply on purpose as a marketing strategy. Many companies do this to make their product appear 'special'.
It's a bit disconcerting that it's always out of stock. I'm sure I'll try it eventually.
Honestly, Panna Creama should take advantage of their popularity while it lasts. We're a fickle bunch around here, and I'm sure they'll be another new hot soap very soon.