1st Henna this weekend, HELP!!

[You must be registered and logged in to see this image.] I am getting ready to Henna for the 1st time. I want the end result to be medium reddish brown. I also bought Alma to help condition my hair. Can someone please tell me what ratio I need to achieve this. I have shoulder length hair. Any input greatly appreciated , I am sooo nervous.

It's a little hard to say because a lot depends on your natural starting hair colour. However, a 50:50 might a good ratio to start of with and then you can adjust the ratio from there. Good luck!

Thanks R2D2, Will let u know how it goes!!