Royal Bird’s Nest Ready to drink Bird’s Nest with Rock Sugar and Collagen (Hong KongStyle) is made from superior grade genuine bird’s nest. Collagen is added to further enhance the natural goodness of bird’nest. The product is prepared according to traditional simmering process under modern and strictly controlled methods. It does not contain any artificial colouring, flavouring, preservatives. It is ready-to-drink, can be taken chilled or warmed, and is suitable for all ages.