Phenylalanine is an amino acid used by the body to make proteins, treat depression, and treat skin conditions. However, for people with the genetic disorder phenylketonuria, phenylalanine can be a serious health concern.

Pigmentation is mostly harmless to health or life, but it affects aesthetics and greatly affects our confidence. Especially when birthmarks appear in visible places on the body such as the face.

Vitiligo is a common skin disease that is usually not dangerous. However, because the disease is quite complicated, the treatment process for vitiligo is often long and treatment methods may come with some unwanted side effects.

Hair turning white has many different causes such as old age, illness or genetics. However, world medicine has recorded a case of loss of pigmentation causing hair to turn white after a short time called Marie Antoinette syndrome.