What is the main purpose of using sunscreen?

The main purpose of using sunscreen is to protect against harmful UV rays. Sunscreen contains active ingredients that either absorb or reflect these ultraviolet (UV) rays, which can lead to skin damage, including burns, premature aging, and an increased risk of skin cancer. By applying sunscreen regularly, individuals can reduce their skin's exposure to both UVA and UVB rays, thereby helping to maintain skin health and prevent long-term damage.

While enhancing skin elasticity, clearing acne, and exfoliating dead skin cells are important aspects of skin care, they do not relate to the primary function of sunscreen. Sunscreens specifically target the protection of the skin from UV radiation rather than addressing other skin concerns directly.