A lightweight, easily-absorbed serum that fully mimics the effects of retinoids without their unfavorable properties, however – e.g. intolerance to sunlight. Retinoids are derivatives of vitamin A. The serum contains extracts and oils from tropical plants, hyaluronic acid, vitamins A, C and E and seaweed extracts. It has moisturising, antioxidant, soothing and brightening effects. It improves skin texture, reduces the formation of wrinkles, minimises pores, optimally treats localised acne symptoms and reduces undesired pigmentation. Apply to the entire face or locally to problematical areas. It is suitable for all skin types and particularly for mature skin. The effect is augmented when it is applied using the cosmetic ultrasound device (intended to be used in combination with RYOR Conductive gel).