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Updated: Aug 9, 2026

Pharmacologic Induction of Epidermal Melanin and Protection Against Sunburn in a Humanized Mouse Model
Published on: September 7, 2013
Sunscreens and the prevention of skin aging
1University of California, Los Angeles School of Medicine.
Abstract:
It has been well established in both human and animal skin that ultraviolet radiation from both ultraviolet B (UVB) (290 nm-320 nm) and ultraviolet A (UVA) (320 nm-420 nm) can produce profound changes in the skin that with recurrent exposure, cause it to become what we recognize as photoaged skin. Experimental studies in animals have confirmed that some sunscreen chemicals are capable of providing protection against ultraviolet-induced photoaging. It is presumed that regular use of these effective sunscreens will also reduce skin aging changes in humans.
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