I acquired all these during my uber diy hair product making days. Now I don’t feel the same enthusiasm for mixing my own products so I just about manage to add a few drops of any two of these to some Shea butter and I’m good to go. And sometimes I use the tea tree oil in a carrier oil (12-15 drops in 30ml of jojoba or argan oil) on my scalp. I can barely recall the properties of these essential oils but I probably chose most for antiseptic or growth stimulating benefits.
Tea Tree Oil