摘要
Dear Editor,Sir,pearl is a natural product that is well known for its good property for skin care.Pearl is composed of about 90%calcium carbonate,5%organic compounds(msi60,nacrein,msi31,prismalin-14 and aspein)and 5%water.The main component,calcium carbonate crystals,is stable and can be applied for skin care.There are many reports on medical effect of pearl on several skin diseases such as atopic dermatitis and UV dermatitis[1].Also,it is reported that pearl can help reduce oxidative stress[1].There is no doubt that the dermatological usefulness of pearl is confirmed.
