Medically reviewed by Casey Gallagher, MD Moles, which occur when pigment cells called melanocytes cluster together, are very common. Most people have 10-40 moles on their skin, especially on ...

The research team began looking deeper into human melanocytes. They looked at melanocytes through different developmental stages, aging, anatomic locations, sexes, and skin tones. While most studies ...

Theoretically, however, if we can coax our stem cell melanocytes into becoming melanocytes again, we could reverse gray hair. Stress is thought to be another route to a head packed with gray hairs.

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 ...

These melanocytes ramp up the production of dark pigment when you are exposed to the UV light from sunshine. Freckles are usually harmless, but be sure to see a doctor if they are changing shape.

Melanocytes were thought to be interchangeable but lead author Rachel Belote, PhD, HCI postdoctoral fellow in the Judson-Torres Lab, says, “I noticed that not all melanocytes respond to signals ...

But over time, explains Harris, the melanocytes can lose steam, producing less—and eventually no—pigmentation. “They’re no longer doing their job,” she says.

Melanocytes at the base of ordinary nevi generally resemble lymphocytes (although they are somewhat larger). In superficial spreading melanomas, this maturation sequence is abortive or unapparent.

Causes of melasma on dark skin Melasma occurs when melanocytes produce too much pigmentation in the skin, resulting in dark patches. People with black or brown skin have more melanocytes.

Vitiligo occurs when melanocytes within the skin and hair die off. Melanocytes are the cells responsible for producing the skin pigment melanin. This pigment gives skin its color and protects ...

Eyes have melanin, a protein that releases cells called melanocytes. The amount of melanocytes will reveal your baby’s unique eye color by the end of their first year of life.