Skin Care Terminology and Facts Dictionary - U

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Ubiquinone:	lipid (fat) soluble antioxidant produced naturally by the body. Production decreases with age. Its role is to help: 1) enhance cellular energy metabolism, 2) cells build collagen, 3) cells build elastin, 4) reduce free radicals, 5) increase antioxidant capacity. Helps reduce fine lines and wrinkles, for enhanced appearance.
ulcer:	deep, penetrating damage to dermis. These often heal with scarring unless properly attended to. Use of Aloe Vera can be beneficial.
undecylenic acid	organic, unsaturated fatty acid derived from Castor Oil. Excellent for use against and to treat: athlete's foot, jock itch, ring worm, finger nail fungal infections, toe nail fungal infections and skin fungus infections. Has fungicidal properties: kills fungi broadly; and fungistatic properties: inhibits fungi growth. Also found naturally in human sweat as part of the body's anti fungal protection and control mechanism. For Nancy K Brown undecylenic products derived from Cator Oil for see here and here
urticaria:	hives (red, raised bumps), may occur after exposure to an allergen, at beginning of flares, or after a hot bath or excercise.
UV induced skin aging:	also known as photo-aging, which is induced by UV radiation. Examples of visible signs of UV-induced skin aging are wrinkles and brown spots, the result of prolonged unprotected exposure to UVA and UVB rays.
UVA:	ultraviolet A radation - the spectrum of light, which causes premature aging - manifested in wrinkles and age spots (dark blotches). Too much UVA exposure may cause skin cancer.
UVB:	ultraviolet B radiation - the spectrum of light, which causes sunburns. Too much UVB exposure may cause skin cancer.

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