Which vitamin helps protect the skin from the harmful effects of the sun's UV light?

Which vitamin helps protect the skin from the harmful effects of the sun's UV light?

• A. Vitamin A
• B. Vitamin C
• C. Vitamin D
• D. Vitamin E

Answer: (D)

UV damage from sunlight creates harmful free radicals that can injure skin cells. Antioxidants help by neutralizing those free radicals before they cause a lot of damage. Vitamin E is a fat-soluble antioxidant that sits in skin cell membranes, where it guards lipids from oxidation and reduces inflammation after UV exposure. Because it protects the lipid-rich parts of cells and works to blunt oxidative stress, it’s particularly effective at shielding skin from the damaging effects of UV light. It’s also known to work well with other antioxidants (like vitamin C) to support ongoing protection and healing. Other vitamins don’t fit as well for this specific protective role. Vitamin A supports skin texture and renewal but isn’t the primary agent countering UV-induced oxidative damage. Vitamin C is another important antioxidant for the skin, yet the emphasis here is on protecting membranes from lipid oxidation, where vitamin E is especially protective. Vitamin D is produced by sun exposure and isn’t a protective agent against UV damage.

UV damage from sunlight creates harmful free radicals that can injure skin cells. Antioxidants help by neutralizing those free radicals before they cause a lot of damage. Vitamin E is a fat-soluble antioxidant that sits in skin cell membranes, where it guards lipids from oxidation and reduces inflammation after UV exposure. Because it protects the lipid-rich parts of cells and works to blunt oxidative stress, it’s particularly effective at shielding skin from the damaging effects of UV light. It’s also known to work well with other antioxidants (like vitamin C) to support ongoing protection and healing.

Other vitamins don’t fit as well for this specific protective role. Vitamin A supports skin texture and renewal but isn’t the primary agent countering UV-induced oxidative damage. Vitamin C is another important antioxidant for the skin, yet the emphasis here is on protecting membranes from lipid oxidation, where vitamin E is especially protective. Vitamin D is produced by sun exposure and isn’t a protective agent against UV damage.