T2 - Skin Product Terminology Flashcards
Absorbents
Absorb moisture from skin and local wounds and thereby maintain dry conditions to discourage bacterial growth
Astringents
Arrest blood hemorrhage by coagulating blood that help wound and cuts heart quickly
Caustics
Destroy skin at the applied site (corrosive). They are useful in the treatment of warts, keratoses, and hyperplastic tissues.
Counter irritants
Used to promote a secondary irritation that helps to counter an initial irritation.
Demulcents
Can alleviate irritation of mucous membranes or abraded tissues
Humectants
Promotes retention of water on the surface of the skin
Keratolytics
Cause desquamation (peeling) of skin. These agents are useful in the treatment of eczema, acne, etc.
Levigation
The incorporation of a small quantity of powder medication into a small amount of
liquid or ointment base to get a concentrated mixture for easy further dilution with more
ointment base
Moisturizers
Increase the water content of the outer layer of the skin,
Emollients
Help maintain a soft and smooth skin feel by preventing water loss by evaporation
How are moisturizers and emollients similar?
Used to reduce the dryness and scaling of skin
Occlusion
- Refers to skin covered directly or indirectly by impermeable films or substances such as diapers, tape, chambers, gloves, textiles garments, wound dressings, transdermal devices, etc.
- A combination of many physical factors that affect the skin and the applied compound by enhancing hydration and sometimes increasing skin temperature
What drugs tend to have a more occlusive effect?
- Topical vehicles that contain fats and/or polymer oils
- Ointments can enhance percutaneous absorption of a topical product by providing an occlusive barrier
- Creams, lotions, and gels have lower oil content and therefore are less absorptive.
Protectives
Shield exposed skin surface and other membranes from harmful stimuli.
Rubefacients
Increase the skin temperature by increasing the circulation at the surface.