Headache Relief Essential Oil Blend diluted in Massage Base (ready to apply). Many headache suffers report relief with this simple blend. We have tested many more complicated blends but like this one best. This essential oil blend is premixed in our massage base and can be used without further dilution. Rub lightly into temples and base of skull at the neck or add a cap full to a warm bath. A blend of 100% pure Essential Oils: Lavender and Peppermint in our Massage Base (a combination of Sweet Almond, Grapeseed and Jojoba oils).