Human lip. Coloured scanning electron micrograph (SEM) of a human lip, showing sweat gland openings on the drier external lip surface. These openings (pores) release sweat onto the surface of the skin — Stock photos

"Human lip. Coloured scanning electron micrograph (SEM) of a human lip, showing sweat gland openings on the drier external lip surface. These openings (pores) release sweat onto the surface of the skin" is an authentic stock image by ScienceRF. It’s available in the following resolutions: 1600 x 1265px, 2600 x 2055px, 4702 x 3717px. The minimum price for an image is 49$. Image in the highest quality is 4702 x 3717px, 300 dpi, and costs 449$.