SO, I just got some henna...?

i use henna all the time. just take the powder and add about a handful of water for every cup of henna. if too thick add more water. the henna should look and feel like a paste and it shouldn't be watery. spread it through your hair like shampoo and leave it in for about 5 hrs. when you wash it out, don't shampoo just condition. you should shampoo before you use henna.