What it is: A concentrated serum that helps minimize the appearance of pores, reduce imperfections and improve the look of dark spots.Who it's for: Suitable for all skin types, especially those with combination or oily skin.What it does: This serum helps leave you with a more balanced and even skin tone. Its formula contains niacinamide and zinc PCA, which help clarify and improve skin's texture and tone, while sodium hyaluronate helps moisturize and mandelic acid helps refine skin. The serum features a water-light, fast-absorbing texture that's nongreasy.Research results:In a 28-day consumer test on 129 women between 18-35 years with twice daily use:- 91% agreed skin's look and feel was improved- 91% agreed the product cleared skin- 90% agreed skin was balanced- 89% agreed skin's texture was improved- 88% agreed skin's tone looked more even- 87% agreed the serum smoothed skinHow to use: Apply a few drops of serum to cleansed, dry skin all over your face and neck then massage in, avoiding the eye area. Use daily, morning and night. Be sure to use a sunscreen while using this product.