Olay Regenerist Luminous Tone Perfecting Cream is a scented, fast-absorbing face moisturizer that is said to fade the look of dark spots, age spots, sun spots and discoloration – promoting a more even skin tone. One of the key ingredients in this cream is niacinamide, a form of vitamin B3 that plays a vital role in cellular metabolism. This means that niacinamide provides skin cells with the energy needed to perform important processes, such as DNA repair and cell turnover. Niacinamide also has the ability to repair the skin barrier and improve skin moisture, as well as reduce inflammation, blotchiness, hyperpigmentation, acne, and wrinkling. Another key ingredient is acetyl glucosamine, which is a monosaccharide derivative of glucose. Similar to niacinamide, acetyl glucosamine provides numerous benefits to the skin. For example, this ingredient reduces the production of melanin through several mechanisms, which helps to decrease the appearance of dark spots and discoloration. Acetyl glucosamine also provides skin exfoliating properties similar to alpha and beta hydroxy acids without the irritation. Lastly, acetyl glucosamine has been shown to replenish hyaluronic acid levels in the skin, which improves hydration and gives the skin a “plump” look. In addition to these two key ingredients, Olay Regenerist Luminous Tone Perfecting Cream contains several antioxidant ingredients, including aloe leaf extract, sodium ascorbyl phosphate (vitamin C), tocopheryl acetate (vitamin E), and green tea leaf extract. However, the jar packaging may render the antioxidant capability of these ingredients unstable due to exposure to light and air.