Yes, jasmine essential oil can be included in hair rituals, typically to add softness and shine to lengths and ends. As it is highly concentrated, it should always be diluted. For a hair treatment, add 3-5 drops to a generous amount of a light carrier oil (such as coconut or argan oil, warmed slightly if solid). Apply this blend primarily to the mid-lengths and ends of damp or dry hair, where dryness is most common, and avoid the scalp if you are sensitive to oils or fragrance. Leave it on for at least 30 minutes as a pre-wash mask, or overnight for deeper conditioning, then shampoo thoroughly. For a daily leave-in option, add just 1 drop to your regular conditioner or a palm-sized amount of styling cream. Its softening properties can help make hair feel smoother. Remember, external use only, and if you have a sensitive scalp or any scalp conditions, it's wise to perform a patch test first or seek expert advice.