Vitamin K-1, also known as phytonadione or phylloquinone, is an important nutrient that helps with our blood’s ability to clot or coagulate following injury. Vitamin K is found naturally in foods such as leafy green vegetables (kale, spinach, broccoli) and soybean oil. Vitamin K can also be obtained in dietary supplement capsules or multi-vitamins.
The benefit of Vitamin K in skin care is that it is used in formulations designed to address dark pigmentation under the eyes. While this dark pigmentation, sometimes referred to as periorbital hyperpigmentation, or simply dark circles, can be caused by a variety of factors such as stress, lack of sleep or genetics, the most common cause is the pooling of blood under the thin skin under the eyes. This pooling occurs when tiny capillaries break and release small amounts of blood under the skin. The anti-clotting characteristics of Vitamin K helps prevent leakage from these capillaries.
A good eye cream for dark circles, in addition to Vitamin K, should include hyaluronic moisturizers, arnica montana and soy peptides for the most benefit.