Isn't that a GHK strain? Sorry I'm dabbed out of my mind and will get lost if go looking for info. But from what I remember it comes and goes like a lot of his more special cultivars. Hope youre able to try it sometime
GHK used to have it pretty regularly but I have not seen it in awhile. You could check Roots of Happiness - for the fresh frozen. For some time they were selling that strain frozen. I don't think I have seen it offered anywhere else.
If you can get a hold of Chris from @Gourmet Hawaiian Kava he may have a Hanakapi'ai plant ready to harvest and turn into root. Root of Happiness's fresh frozen root also tends to come and go. I know the few times I thought to get some fresh frozen Hanakapi'ai it was out of stock. I think most other Hawaiians that grow kava keep the good stuff for themselves.