@Karen Weakley Welcome, Karen! ๐ค Iโm so glad youโre here. And first, youโre definitely not alone. So many people understand concentration and volume but still get stuck when it comes to figuring out what that means on the syringe. Thatโs actually one of the biggest reasons I started making these lessons. ๐ My goal is for that โlight bulbโ moment to happen, and once it clicks, youโll realize itโs much simpler than it seems. Ask as many questions as you needโweโre all learning together, and there are no silly questions here. ๐ธ