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-Line set includes:
USOLAB Bio Premium K Ampoule
USOLAB Bio Intensive K Cream
USOLAB Bio Intensive Barrier K Mist
USOLAB Bio Intensive Foaming K Cleanser

Centella Asiatica Extract – heals wounds, soothes irritation, provides anti-inflammatory and rejuvenating effects, improves skin elasticity, fights free radicals, and reduces the harmful effects of UV rays.
Licorice Root – acts as a desensitizing agent, relieves itching caused by allergic reactions, dermatitis, and eczema.
Panthenol – promotes accelerated cell regeneration, restores epidermal protective functions, minimizes and prevents flaking, strengthens blood vessel walls, and reduces the appearance and severity of couperose.
Menadione (Vitamin K3) and Phytonadione (Vitamin K1) – possess high healing properties, soothe irritated skin, relieve inflammation and itching, improve skin tone, strengthen protective functions, prevent dehydration, and reduce visible blood vessels.
Tranexamic Acid (2%) and Niacinamide (2%) – reduce the visibility of blood vessels in cases of couperose and rosacea, decrease inflammation, and prevent new occurrences.
Phytosterols (0.02%) – stabilize and inhibit the activity of leukotrienes, which are inflammatory mediators responsible for triggering skin’s inflammatory and allergic reactions.
Exosomes – microscopic extracellular vesicles that represent a new advancement in delivering active ingredients into the skin. They surpass liposomes and polymeric nanoparticles due to their extended half-life, ensuring stability and biocompatibility.

USOLAB is a leading Korean cosmeceutical brand specializing in post-procedure skincare. With a name derived from “You’re So Beautiful + Laboratory,” USOLAB combines advanced research with high-quality ingredients to develop products that promote skin regeneration and healing. Trusted by over 1,000 dermatologists, plastic surgery clinics, and aesthetic centers worldwide, USOLAB offers professional-grade skincare solutions suitable for home use.