06/12/2026
Apparently there is some confusion that freckles are a sign of sun damage or even skin cancer, so let's clear that up.
Freckles are not skin cancer.
They're not a disease.
And they're not sun damage.
Freckles are areas where the skin produces more melanin than the surrounding skin.
Melanin is the pigment responsible for skin, hair, and eye color. When skin is exposed to sunlight, specialized cells called melanocytes increase melanin production as part of the body's normal response.
In many fair-skinned individuals, especially redheads, sun exposure triggers melanin production. In some people, that pigment is not distributed evenly. Instead, it tends to concentrate in areas that receive regular sun exposure.
Those concentrated areas of pigment are what we call freckles.
Humans produce two primary forms of melanin:
• Eumelanin — brown and black pigment
• Pheomelanin — red and yellow pigment
Many redheads produce relatively more pheomelanin and less eumelanin than darker-haired individuals. As a result, sun exposure often produces freckles rather than a deep, even tan.
This is also why freckles often become darker and more noticeable during the summer and fade during the winter.
Freckles are best understood as a genetic trait that becomes more visible with sun exposure.
Sunburn is an injury to the skin caused by excessive exposure to UV rays.
A tan is increased melanin production triggered by modest UV exposure and distributed more evenly throughout the skin.
Freckles are concentrated areas of melanin production in people with the genetic predisposition.
Those are not the same thing.
Human biology is usually far more nuanced than a simple internet sound bite.
Comment below if you have freckles