Allies of Skin 20% Vitamin C Brighten + Firm Serum is a next-generation 20% Vitamin C formula, supercharged with 2% Citrus Cell Complex, an Antioxidant Complex of Glutathione and 3 Antioxidants for intense brightening, firming and antioxidant protection. It forms a protective shield against daily external aggressors and pollutants while paving the way for brighter, firmer skin. This antioxidant-rich serum promotes radiance - enhancing elasticity and fading dullness. Over time, skin glows with a brilliant smoothness..Suitable for all skin types.Vegan & cruelty-free.Free of Silicones, Sulfates, Drying Alcohol, Retinyl Palmitate, Synthetic Dyes & Fragrances, and Essential Oils.1 fl oz/ 30 ml.Shake well before every use. After cleansing and using the Molecular Saviour Probiotics Treatment Mist (sold separately), apply 2 - 4 pumps all over face, eye area, and neck.Use daily in the AM and/or PM.Follow up with your favorite moisturizer and/or face oil