Sunscreen, Part I: UVA, UVB, and Proper Use


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The Sun
Photo: Plasma connects to different magnetic polarities on the sun. Courtesy Wikipedia. If you can only buy one anti-aging product, then buy a broad-spectrum (UVA/UVB) sunscreen of at least SPF 30, and use it each and every day. Your skin will thank me in twenty years, as UV exposure has been linked to almost every known cause of aging, from free radical release to matrix metalloproteinase formation to DNA damage, and ultimately, to signs of aging that include sunspots, wrinkles, and collagen loss. The best sunscreens block UV light in the... read more