What role does SPF play in skincare?

SPF, or Sun Protection Factor, plays a crucial role in skincare by providing a protective barrier against harmful ultraviolet (UV) rays from the sun. These UV rays can lead to various skin issues, including sunburn, premature aging, and an increased risk of skin cancer. When a product is labeled with an SPF rating, it indicates its effectiveness in blocking or absorbing UV radiation, effectively reducing the amount of UV exposure that penetrates the skin.

While moisturizers and products that enhance skin elasticity are essential components of a skincare routine, their primary functions do not include sun protection. Additionally, darkening of skin tone is generally a result of sun exposure and is not a benefit associated with SPF products. Therefore, the protective role of SPF against UV rays is critical for maintaining skin health and preventing damage caused by prolonged sun exposure.