Bio oil bio oil 60mlbio oil provides effective specialist skincare for scars stretch marks uneven skin tone ageing skin and dehydrated skin this is a specialist skincare product that has been formulated especially to help improve the appearance of scars stretch marks and uneven skin tone through regular use it works through the use of the breakthrough ingredient purcellin that helps replenish the skins natural oils by reducing the thickness of the oil making it easier to absorb through