Oto olive oil contains olive oil that softens cerumen and makes it easier to remove. The solution can also be used preventively to assist the natural process of cleansing the ear and preventing the formation of a ceruminous plug. Tea tree oil contained in the preparation acts as a natural antifungal and anti-inflammatory agent that reduces the possibility of bacterial and fungal ear infections, while Vitamin A stimulates the epithelization of irritated and inflamed ear mucosa.