Which type of tan is characterized by being easily achieved and rarely burning?

The type of tan that is characterized by being easily achieved and rarely burning corresponds to the highest skin phototype classification, which is Type 4. Individuals with this skin type generally have light brown to brown skin and are less prone to sunburn, making it easier for them to develop a tan when exposed to sunlight. Their skin contains more melanin, which provides a natural protection against the harmful effects of ultraviolet (UV) radiation, allowing them to tan more effectively and with minimal risk of burning.

In contrast, Type 1 and Type 2 skins typically burn easily and struggle to tan, while Type 3 may tan better but can still experience burning under certain conditions. Therefore, the characteristics of Type 4 accurately reflect a skin type that achieves tanning with less risk of sunburn, delineating it from the other types.