Israeli study explains delay in tanning after sun exposure


August 11, 2023

(JNS) — Tel Aviv University researchers have proposed a new theory for why the body’s tanning process does not occur immediately after exposure to the sun’s rays, but only after a few hours or even days.

The study found that the body’s initial response to sun exposure is to prioritize repairing DNA damage in the skin cells, which inhibits the mechanism responsible for skin pigmentation, commonly known as tanning.

The research, published in the Journal of Investigative Dermatology, was led by doctoral student Nadav Elkoshi and Professor Carmit Levy of the Department of Human Molecular Genetics...

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