@Ismail It was "Meswak" but as someone said it contains SLS and carrageenan.
I'm now using a toothpaste with hydroxiapatite called "Couto" mentionned on this thread [https://bioenergetic.forum/topic/1585/n-ha-toothpaste-in-europe/6](link url) It's great.
But the best I've tried really is the Frankie's naturals tooth powder (though the shipping outside the US is extremely expensive)