Our members receive our quarterly e-newsletter with members-only content including interviews with dermatologists, information on contests and draws, and are the first to hear about upcoming events.

Membership is free.

Learn More

How Does Psoriasis Work?

Skin is an organ on its own and is part of a large organ system called the integumentary system, which also includes oil glands, sweat glands, hair and nails.

There are two main layers of skin: the epidermis and the dermis.

  • The dermis is the bottom layer and the epidermis is the outer layer of skin.
  • The deepest layer produces millions of new cells every day. The cells are pushed up toward the surface of the skin.
  • Typical skin cells regenerate every 28 days; for psoriasis patients, skin cells are regenerated in 3-7 days.
  • This leads to cells piling up before the body can have time to shed them, forming red, sore, scaly plaques on the affected areas.