SANYRENE HYPEROXYGENATED OIL - PRESSURE ULCER PREVENTION 20ml Sanyrene is an hyper oxygenated oil of essential fatty acids indicated to prevent the risk of developping pressure ulcer. Sanyrene reduces the risk of developing a pressure ulcer by half (GIPPS Study), preserves tissue oxygenation during pressure, strengthens skin resistance and prevents skin dehydration. Sanyrene increases cellular renewal and restores the lipidic film.