Melanocyte

Melanocyte — a specialized cell in the base of the epidermis that produces melanin, the pigment that gives skin, hair, and eyes their color. Melanin also helps absorb and scatter ultraviolet light, offering the skin some protection against UV damage.

Key points

• Melanocytes are located mainly in the basal layer of the epidermis and transfer melanin to surrounding keratinocytes.
• The pigment they produce helps shield skin cells and their DNA from ultraviolet radiation.
• People of all skin tones have a similar number of melanocytes, with differences in color driven largely by the type and amount of melanin produced.
• Uneven melanocyte activity can contribute to hyperpigmentation, such as dark spots, or hypopigmentation, where color is reduced.

Frequently asked

Do people with darker skin have more melanocytes?

Not necessarily; most people have a comparable number of melanocytes, and skin tone differences come mainly from how much melanin is produced and its type.

How do melanocytes relate to dark spots?

Dark spots often form when melanocytes produce excess melanin in localized areas, frequently triggered by sun exposure, inflammation, or hormonal changes.

Related topics

• What Is a Humectant?
• What Is the Skin Barrier?

This is a foundational entry in the SYNC Skin Encyclopedia and is expanded over time. Educational information only — not medical advice.