Vitamin K is often used in eye serums to help reduce the appearance of dark circles and bruising. It's believed to work by strengthening capillaries and improving blood circulation around the eyes.

Korean skincare often incorporates ingredients like ginseng, peptides, and hyaluronic acid in eye creams and serums to target wrinkles. These ingredients aim to hydrate the skin, boost collagen production, and improve skin elasticity.

Vitamin K is generally considered safe for use under the eyes. Look for eye serums specifically formulated with Vitamin K to help diminish the appearance of dark circles and bruising.

The most effective eye serum depends on individual skin concerns. Look for serums with ingredients that target your specific needs, such as Vitamin C for brightening, retinol for wrinkles, or hyaluronic acid for hydration. Consider reading reviews and consulting with a dermatologist for personalized recommendations.