"Visible light can participate in the processes of skin aging," says photobiologist Paolo Giacomoni, Ph.D., of Insight Analysis Consulting.
He wrote a recent feature article on this subject for the January 2019 issue of Cosmetics & Toiletries. He also teaches classes on it for the Society of Cosmetic Chemists Continuing Education Program.
He adds, however, "Nobody has to be scared of visible light. It is more helpful than it is harmful. ... A lot of things happen thanks to visible light. Think of chlorophyll in plants, or the photo-movement in small bacteria.
"People say a lot of nonsense about [the detrimental effects of] visible light in human skin, so I thought it would be good to summarize what we know for real: what are the good views and bad views of visible light."
As you might expect, the dose and exposure make the toxicity. Listen below to learn more or review the full article.
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