Thanks, unfortunately I can't order anything outside of the EU die to Customs.I couldn’t find that post I mentioned but I did dig up some of the powder. Here’s one such that I found:
MCHA Bulk Bag (80 grams)
Add the remineralizing power of MCHA to your DIY tooth powder or paste. Each MCHA Bulk Bag contains 80 grams of microcrystalline hydroxyapatite (the main remineralizing ingredient in our Shine Remineralizing Tooth Whitening Powder).For DIY fans who prefer to make their own tooth powders and for...store.orawellness.com