Rens bio retinoid anti ageing concentrate is a potent blend of 100 nature derived vitamin a pro vitamin a and retinoid analogue that helps to combat the appearance of wrinkles imperfections and age spots leaving your complexion looking visibly younger smoother and brighter without the irritating effects of synthetic retinol reduces the appearance of wrinkles age spots and imperfections skin looks firmer plumper healthier complexion appears brighter and more even toned skin appears sm