Which skin type is most prone to sunburn?

Skin type I is characterized by very fair skin that typically burns easily and rarely tans. This skin type has minimal melanin production, which leads to a lack of protection against ultraviolet (UV) radiation. Because of this, individuals with skin type I are highly susceptible to sunburn when exposed to the sun, even for short periods. They often have light hair and blue or green eyes, further indicating a lower level of melanin that helps shield the skin from the harmful effects of the sun.

In contrast, skin types II, III, and IV have progressively more melanin and generally experience less burning under UV exposure. These skin types can tan to varying degrees, which provides them with some protection against sunburn compared to skin type I. The higher the skin type number, the more melanin present, which contributes to an increased ability to withstand sun exposure without sustaining burns.