Yes chile, 10 mg!
However, i did have to build up to that. I started out with 2.5 mg for a few months......... then upped that to 5 mg.......... then 7.5 mg........... and now 10 mg. 10 mg is as high as I'm comfortable going. With each increase in dosage, i did break out some initially, but that went away shortly thereafter.
I forgot to add, the HENNA has also helped to give my strands an illusion of thickness, which is cool!
Nope, you are not alone with the broken strands. I think its a fact of life for fine-haired gals. The most we can do is try to minimize manipulation, and make sure we are moisturizing and giving our hair enough protein. After that, it's all about treating our hair with kids gloves..... we gotta treat it like a piece of fine, imported, Italian lace.