I use an 8 oz spray bottle. I add about 8 drops of each oil, a good squirt of Jojoba and the rest with water. Since you don' have Jojoba, you can probably just skip that. You don't want to have too much oil in there, because essential oils are caustic to your skin and need to be diluted with enough water, or used with an applicator like Jojoba or Sweet almond oil.
The Peppermint is the most caustic, and also smells the strongest, so you should use a little less of that than of the Rosemary. Unless you want to smell like a candy cane. Plus Peppermint is very strong and will make your scalp feel all tingle and cool. But too much of it will start to burn
updated by @baba-fats: 07/10/15 02:10:43AM