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2. Protect Your Scalp and Hair From UV Damage With These Hair ...

   www.aol.com/lifestyle/protect-scalp-hair-uv...

   THE REVIEW: "I have very curly and thick hair, and I put this on during the summer to protect my hair from the heat since the sun's UV rays can damage your hair," reads one tester's review. "It ...

3. How to Control Frizzy Hair In the Summertime and Beyond

   www.aol.com/lifestyle/control-frizzy-hair...

   Thankfully, all the products Ashley listed offer UV protection, but she also shares another solution for keeping your hair in tip-top shape this summer. "Make a fashion statement by wearing a hat ...

4. Summer sun can lead to gray hair — here's how to prevent it

   www.aol.com/news/summer-sun-lead-gray-hair...

   For example, UV rays damage a natural form of protein everyone has in their hair called keratin. Keratin strengthens and protects hair, making it look brighter and feel softer.

5. Melanocyte - Wikipedia

   en.wikipedia.org/wiki/Melanocyte

   Exposure to UV-B radiation causes increased melanogenesis. The purpose of melanogenesis is to protect the hypodermis, the layer under the skin, from damage by UV radiation. The color of the melanin is black, allowing it to absorb a majority of the UV light and block it from passing through the epidermis. [10]

6. Keratinocyte - Wikipedia

   en.wikipedia.org/wiki/Keratinocyte

   Keratinocytes are the primary type of cell found in the epidermis, the outermost layer of the skin. In humans, they constitute 90% of epidermal skin cells. [ 1] Basal cells in the basal layer ( stratum basale) of the skin are sometimes referred to as basal keratinocytes. [ 2] Keratinocytes form a barrier against environmental damage by heat, UV ...

7. Melanin - Wikipedia

   en.wikipedia.org/wiki/Melanin

   The first modern humans had darker skin as the indigenous people of Africa today. Following migration and settlement in Asia and Europe, the selective pressure dark UV-radiation protecting skin decreased where radiation from the sun was less intense. This resulted in the current range of human skin color.