BLUE THERAPY accelerated serum 50 ml BLUE THERAPY accelerated sérum 50 ml is a face serum from Biotherm. This serum is formulated with Life Plankton to help reduce the appearance of wrinkles and give skin a more youthful appearance. It also contains Hyaluronic Acid to help keep skin hydrated and Vitamin E to help protect skin from environmental aggressors. This serum is suitable for all skin types and can be used both morning and night.