Vitamin C serum can be beneficial for the eye area. It can help brighten the skin, reduce the appearance of dark circles, and protect against environmental damage due to its antioxidant properties.

Yes, it is generally safe to apply vitamin C serum under the eyes, but with caution. Use a product specifically formulated for the delicate eye area and start with a small amount to avoid irritation. Always perform a patch test first.

Identifying a single 'highest rated' eye serum is difficult as preferences vary. Look for serums with positive reviews addressing your specific concerns, such as dark circles, wrinkles, or puffiness, and consider ingredients like peptides, caffeine, and hyaluronic acid in addition to vitamin C.

Both hyaluronic acid and vitamin C offer unique benefits for the under-eye area. Hyaluronic acid is excellent for hydration and plumping fine lines, while vitamin C brightens and protects against free radicals. Many effective eye serums combine both ingredients for comprehensive care.