Introducing the 111SKIN Black Diamond Retinol Oil, a highly concentrated night treatment enriched with a 2.5% retinol and granactive retinoid blend. n Powered by eight nourishing oils, the potent formula seeks to minimise the appearance of fine lines, while brightening the complexion. Topped with diacetyl boldine and micro-fine black diamond powder, the lightweight, silky oil visibly diminishes uneven skin tone and textural irregularities over time. The skin is left looking bright and luminous and is suitable for all skin types.