I want to do my second henna trmt this week but would like for my hair to get a darker red. On the back of Karishma it says for a burgundy color to boil beetroots and hibiscus flower and use it to mix the henna. I guess I can find beet roots in a store. Do you think I can make a tea out of hibiscus powder and poor it in there? Have anyone ever added it to your mix?