In addition to dehydrating us physically in the summer, the heat also strips the moisture from our skin, leaving it looking dry and drab. The UVA rays from the sun cause the skin to tan. Melanocytes are triggered by UVA photons that penetrate into the epidermis’ lower layers. Melanin, the brown pigment in the skin that promotes tanning, is produced by these cells. The danger of skin aging prematurely rises with tanning. As they are rarely shielded from the sun’s damaging rays, our hands receive the most sun exposure. Uneven skin tone and discoloration could result from this. People may use harsh procedures, such as bleaching their skin, to remove the tan from their hands, but this darkens the skin even more and leaves it rough and dry.