Tag Archives: A
Allergic contact dermatitis
A rash that occurs due to an applied or encountered substance’s interaction with the immune system that ultimately manifests as irritated skin
Anagen
the growth phase of hair, when cells are rapidly dividing; can range from months to years depending on location and individual characteristics
Alopecia areata
Autoimmune disorder resulting in round or oval patches of hair loss, the trigger for which is largely unknown.
Androgenetic alopecia
Male-pattern and female-pattern baldness; the most common cause of hair loss. A hereditary disorder that is dependent on androgens, dihydrotestosterone in particular. The pattern of hair loss differs between men and women: in men, hair recedes first at the temples … Continue reading
Alpha hydroxy acid (AHA)
Compounds derived from fruits and other foods. Common examples include glycolic acid (sugar), lactic acid (milk) and citric acid. AHAs promote exfoliation of the skin and remove the dead skin cells that collect on the skin surface. This ingredient is … Continue reading
Actinic cheilitis
hard, scaling lesion of the lip caused by cumulative sun exposure; develops similarly to an actinic keratosis, but in a unique location
Actinic keratosis
also known as solar keratosis; a hard, rough patch of skin caused by cumulative sun exposure; a precancerous lesion that can develop into squamous cell carcinoma; common in fair-skinned individuals; most common in areas that receive an excess of sun … Continue reading
Antihistamine
a medication that blocks histamine, thereby blunting the allergic reaction; useful as anti-itch treatment
Atopic
predisposed to allergic hypersensitivity.