The papilla is a term used in various contexts of biology and medicine to describe a small, cone- or wart-shaped structure. In the context of hair biology...
Pheomelanin is one of the two main types of melanin, the natural pigment found in the hair, skin, and eyes of humans and animals. Unlike eumelanin, which has dark shades like…
Photosensitizing drugs are substances that increase the skin's sensitivity to ultraviolet (UV) radiation from the sun or artificial light sources. This increased sensitivity can lead to faster burning of the…
Selective photothermolysis is a technology used in dermatological and aesthetic medicine to treat specific skin problems and conditions by heating targeted tissues with light energy. The principle…
Pili trianguli et canaliculi, also known as uncombable hair syndrome or “uncombable hair syndrome”, is a rare genetic disorder characterized by dry, frizzy, dull and often light blonde hair,…
Proteins are large, complex molecules that play a central role in the cells of all living organisms. They are made up of amino acids linked by peptide bonds, and their structure determines their…
Pseudofolliculitis, often referred to as pseudofolliculitis barbae, is a skin condition that often occurs after hair removal, especially after shaving. These are inflammatory skin reactions caused by ingrown…
Puberty is a crucial developmental period in a person's life during which the body transitions from a childlike state to an adult state. This phase is characterized by physical, psychological and...
Pustules are small pus-filled blisters or bumps on the skin. They are a common symptom of various skin diseases and can indicate an infection, inflammation or allergic reaction. Pustules…