USOLAB K LINE KIT (Cream, Serum, Mist, Cleanser)The K Line combines two forms of Vitamin K (K1 and K3) to instantly calm the skin, reduce redness, and enhance hydration. It helps lower skin reactivity while providing much needed relief from discomfort. In addition, the formulation includes Centella and Licorice extracts, Panthenol, and potent peptides that work together to restore and protect the skin, while exosomes improve the penetration of active ingredients deep into the skin layers. The K