First, you’ll want to add your Solubol carrier oil to your bottle. You’ll add 4 drops of Solubol for each drop of essential oil you use. For a 2 ounces bottle we’ll keep our rose oil at a 1% dilution rate (you can do more but don’t go higher than 1.5% for use on your face), so that would be 18 drops of essential oil and 72 drops of Solubol. If you use the Polysorbate 20 as your carrier, you can use one drop of carrier oil for each drop of essential oil, so 18 drops of each.
Once your carrier oil is added to your bottle, add in your essential oil and gently roll the bottle between your hands to blend the oils together. Use a funnel or carefully pour in your hydrosol and then your witch hazel and shake the bottle to combine.