Toothpaste factories watch ingredient cycles all the time — some surge with consumer curiosity, others build steady demand over years. The team at Roeasy Factory has learned to distinguish short-term noise from genuine market shifts. And by that measure, hydroxyapatite stands apart. A couple of years ago, the only people bringing up hydroxyapatite were a few small natural brands — mostly out of Japan and northern Europe. Now it pops up in roughly one of every three RFQs that hit the inbox. And the real shift isn’t the volume. It’s the way people ask about it. Not “Can you make this?” anymore. It’s “Prove to me you actually understand this ingredient.”....................