While Vaseline can help moisturize and protect dry or chapped skin around the eyes, it's not proven to be effective for reducing under-eye bags. The primary cause of under-eye bags is often the natural aging process, which Vaseline can't address.
However, Vaseline can temporarily plump up the skin and make it appear less wrinkled. This effect is due to its hydrating properties, which can make the skin appear smoother and more youthful. Additionally, some people find that applying Vaseline before bed can help to reduce under-eye puffiness in the morning.
It's important to note that Vaseline is not a substitute for proper skincare. If you're concerned about under-eye bags, it's best to consult with a dermatologist for personalized advice and treatment options.