The 111SKIN Black Diamond Retinol Oil is a luxurious, high-potency night treatment that delivers the advanced power of a 2.5% blend of retinol and Granactive Retinoid in a soothing base of eight natural oils. Formulated with fine black diamond powder and the brand’s NAC Y²™ complex, it targets fine lines, wrinkles, texture irregularities, and age spots, enhancing skin’s radiance while being gentle enough for all skin types.