Which skin types are most susceptible to sunburn?

The correct answer highlights that skin types I and II are the most susceptible to sunburn. These skin types typically have lighter skin tones, often burn easily, and tend to tan minimally or not at all. Individuals with these skin types have less melanin, which provides less natural protection against ultraviolet (UV) radiation from the sun.

Specifically, skin type I is characterized by very fair skin, often with red or blonde hair and light eyes, and is extremely prone to sunburn. Skin type II has fair skin and may tan slightly but will still burn easily when exposed to sunlight. Therefore, those with these skin types should take extra precautions when it comes to sun exposure, including the use of sunscreen and protective clothing.

In comparison, skin types III and IV have more melanin, which provides a higher level of natural protection against UV rays, making them less susceptible to sunburn. Skin types V and VI have even darker skin tones, offering even greater protection from the sun. Although everyone can suffer from sunburn under excessive UV exposure, the likelihood significantly increases for those with skin types I and II.