PALACE BIRD'S NEST WITH COLLAGEN GINSENG is made from genuine high quality Bird’s Nest. It is all-natural with no preservatives, artificial colouring and flavouring. and is processed with utilises state-of-the-art technology high-voltage vacuum sterilization to ascertain it in perfect hygiene condition.PALACE BIRD'S NEST WITH COLLAGEN GINSENG it contains no chemicals or preservatives. Once the seal is opened, best consume within 1 day (24 hours)