ASYNTRA SL is a synergistic blend of Synovea® HR (Hexylresorcinol) and Synovea® EL (Ethyl Linoleate) and Caprylic/Capric Triglycerides, Asyntra SL is an elegant, easy-to-use a skin lightening blend. Ethyl Linoleate is a very good solubilizer for HR and is a stable form of Linoleic acid. Linoleic acid is an essential fatty acid, a precursor of ceramides and a major component of skin lipids. It is clinically proven to lighten UV-induced skin pigmentation by accelerating post-translational proteolytic degradation of tyrosinase