retired hairdresser [SEP] because of my training i have some knowledge of skin care and this is the best antioxidant treatment serum i have found it leaves my soon to be skin looking great the ingrdients are exactly the same and in the same amounts as the other spa product but this one costs less than half it is a light weight fast asorbing serum with no fragrence to irritate sensitive skin i use it before applying the hydrating gel can be used alone or worn under make up make up application simply glides on almost like using a primer i use this along with the hydrating gel twice a day in the morning after my shower while my pores are still open and before bed after washing my face with a gentle non soap cleanser the only additional product i need is a good facial moisturizer with sunscreen under my make up do yourself a favor and try this if you are looking for a great anti aging skin care treatment to reverse old damage and to prevent new damage