What is one common use of solar defense booster in skincare?

Solar defense boosters are specifically designed to enhance the skin's protection against harmful ultraviolet (UV) rays. They contain active ingredients that improve the skin's resilience to sun exposure, thereby reducing the risk of sun damage. This damage can lead to premature aging, sunburn, and increased risk of skin cancer. By using solar defense boosters, individuals can incorporate an additional layer of protection into their skincare routine, complementing the benefits provided by their existing sunscreen products.

While enhancing skin hydration, providing anti-aging benefits, and reducing pigmentation are important aspects of various skincare products, they are not the primary function of solar defense boosters. These boosters focus primarily on bolstering the skin’s defenses against UV radiation, making option C the most accurate choice in this context.