What is melanin? Melanin is a naturally occurring substance or pigment produced by special skin cells called melanocytes that are found in one's skin, hair follicles, eyes and other parts of the ...

When the skin is injured, a stem cell’s survival instincts kick in. New research reveals that a simple amino acid, serine, ...

TIME FOR A POP QUIZ 1. Why is it unlikely that skin cancer played a part in shifting skin colors over time? 2. Did the early humans decide that the changes in hair and skin color needed to change? 3.

The hair on your skin grows out of hair follicles, explained Dr. Emily Newsom, a board-certified dermatologist at UCLA Health. "And when you shave over them, there can be some inflammation to ...