T-Cells represent one regiment within the body’s greater immune system army (the white blood cell army).  There are a variety of different functions of this army, including communication, massive self-reproduction and, of course, ruthlessly destroying all hostiles.

Within the T-Cell regiment there are different roles including “Killers” and “Helpers.”

In effect, psoriasis inspires T-Cell regiments to make war indefinitely, producing too many helper T-Cells (TH-Cells) for no good reason, thus causing swelling and excessive skin production. To be more specific, T-Cells are making war because of false intelligence reports produced and handed over by rogue antigens. Thus, more T-Cells of all kinds are called into battle, escalating a conflict that shouldn’t be happening in the first place, ultimately resulting in unhealthy swelling, pain and excessive skin cell production.

As a casual observation, I suspect that Neutrogena’s T-Gel and T-Sal shampoos are thus named because of the medicinal effect they have on psoriasis, which is a T-Cell centric disease.