skin on the back of a hand of a mature person, with veins showing

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ageing back backdrop background barrier body close close-up collagen cover cutaneous detailed details ectodermal elastic environment exposure external glabrous hand human integumentary system internal layers life macro maintain melanin melanocytes natural nature nobody old organic pattern physical pigmentation process protect radiation seven skin small sun synthesis tan tissue ultraviolet uv vitamin d
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  • Details
  • Published on Nov 09, 2022
  • Photo type JPG
  • Category Science