DermaPrime Plus Reviews : Take four tablespoons of sea salt and mix it with a quarter cup of rice water, two tablespoons of olive oil and six drops of lavender essential oil. Sensitive skin should do a patch test before using this recipe. Make rice water hair rinse by mixing six drops of your essential oil to a cup of the rice water solution. After shampooing, pour this mixture on your scalp and coat your lengths as well. Massage your scalp, and then let this sit for about five minutes.