UVA rays cause which effect?

UVA rays cause which effect?

• A. Photoaging
• B. Skin cancer
• C. Hyperpigmentation
• D. Tanning

Answer: (A)

UVA rays penetrate deeper into the skin, reaching the dermal layer where they trigger processes that break down collagen and elastin. Over time this leads to signs of aging such as wrinkles, sagging, and a leathery texture—what we describe as photoaging. Unlike UVB, which is more closely linked to sunburn and DNA damage that can increase skin cancer risk, UVA’s long-term impact is the structural changes in skin that come with aging. While UVA can contribute to tanning and some forms of hyperpigmentation, the defining long-term effect associated with UVA exposure is photoaging, making it the best answer in this context.

UVA rays penetrate deeper into the skin, reaching the dermal layer where they trigger processes that break down collagen and elastin. Over time this leads to signs of aging such as wrinkles, sagging, and a leathery texture—what we describe as photoaging. Unlike UVB, which is more closely linked to sunburn and DNA damage that can increase skin cancer risk, UVA’s long-term impact is the structural changes in skin that come with aging. While UVA can contribute to tanning and some forms of hyperpigmentation, the defining long-term effect associated with UVA exposure is photoaging, making it the best answer in this context.