Yes, a vitamin C mask can be beneficial. It's known to brighten skin, even out skin tone, and provide antioxidant protection against environmental damage.

Vitamin C on the face helps to boost collagen production, reduce hyperpigmentation (dark spots), and protect the skin from free radical damage caused by sun exposure and pollution. It contributes to a brighter, more youthful complexion.

Using a vitamin C mask every day is generally not recommended, especially if you have sensitive skin. Start with using it 2-3 times a week and adjust based on your skin's tolerance to avoid irritation.

A simple homemade vitamin C mask can be made by mixing 1/2 teaspoon of vitamin C powder with 1 tablespoon of honey and a few drops of water or aloe vera gel to form a paste. Apply to clean skin for 10-15 minutes, then rinse thoroughly. Always do a patch test first to check for sensitivity.