Our products are harvested from caves in Sarawak and is 100% guaranteed original with no mixture from house nest or other elements such as pig skins, egg white and etc. We also supply process bird nest which is free from H2O2, SO2 and SO3 chemical used by some suppliers to enhance the quality. Furthermore we also can supply all types of Swallows' nest ranging from loose pieces, broken pieces to black feather swallow's nest. Dont hesitate to contact us for more detail.