Indigenous cultures have long valued Palo Santo as a cleansing and purifying remedy. Today Palo Santo is enjoyed as an essential oil that can used in a diffuser or by rubbing a few drops in your palms and gently wafting the uplifting fragrance towards your face. A cousin to Middle Eastern Frankincense, Palo Santo has citrus and balsam tones and is known as a 'spiritual' oil. 100 per cent essential oil.