Helps reduce the appearance of premature aging and lack of firmness with Natura Bisse Stabilizing Purifying Concentrate, a Retinol-like, firming, oil control serum for combination, oily or acne-prone skin. This balancing and oil-free serum is infused with Pro-Skinbiome and a prebiotic complex to help help diminish impurities and pimples, while also helping to improve the appearance of dilated pores. It is the ideal firming serum for balancing the skin when you notice specific skincare concerns escalating, such as excess oil production or an increase of visible impurities. Gluten-free and Vegan.