Fast-absorbing, advanced serum for all skin types. This potent dose of non-irritating Vitamin C is stabilized by botanically-derived ferulic acid to deliver optimal antioxidant benefits and improve the appearance of skin. How: Apply a thin layer of serum to cleansed skin. Excellent for use after stimulating treatments, between treatments or as a finishing product. Leave on. Follow with a moisturizer.30ml Eminence Organics Citrus & Kale Potent C + E Serum 30 ml