Through or by way of the skin: transdermal inoculation; transdermal medication.

The degree to which or rate at which a drug or other substance is absorbed or becomes available at the site of physiological activity after administration.

The outer, protective, nonvascular layer of the skin of vertebrates, covering the dermis.

The sensitive connective tissue layer of the skin located below the epidermis, containing nerve endings, sweat and sebaceous glands, and blood and lymph vessels. Also called corium, cutis, derma.

A unit of mass equal to 1/12 the mass of the most abundant isotope of carbon, carbon 12, which is assigned a mass of 12. Also called atomic mass unit (amu).

Power or capacity to produce a desired effect; effectiveness.

The horny outer layer of the epidermis, consisting mainly of dead or peeling cells.

Any of various natural or synthetic compounds containing two or more amino acids linked by the carboxyl group of one amino acid to the amino group of another.

A short polymer of two to twenty nucleotides.

Having an affinity for water; readily absorbing or dissolving in water.

Of or relating to systems or a system.
a. Relating to or affecting the entire body or an entire organism: systemic symptoms; a systemic poison.
b. Relating to or affecting a particular body system, especially the nervous system: a systemic lesion.
c. Physiology. Of or relating to systemic circulation.

Medicine. Taken into the body or administered in a manner other than through the digestive tract, as by intravenous or intramuscular injection.