Product name : Vitamin K

Characteristics and Application :

Vitamin K is a fat-soluble vitamin.Vitamin K is essential for the functioning of several proteins involved in blood clotting. There are two naturally occurring forms of vitamin K. Plants synthesize phylloquinone, which is also known as vitamin K1. Bacteria synthesize a range of vitamin K forms using repeating 5-carbon units in the side chain of the molecule. These forms of vitamin K are designated menaquinone-n (MK-n), where n stands for the number of 5-carbon units. MK-n are collectively referred to as vitamin K2.

Research into the antioxidant properties of vitamin K indicates that the concentration of vitamin K is lower in the circulation of carriers of the APOE4 gene and recent studies have shown its ability to inhibit cell death due to oxidation in nerve cells.

A study published in the Journal of Cosmetic Dermatology examined the effect of applying a gel containing 2% vitamin K plus 0.1% retinol, vitamin E, and vitamin C. Fifty-seven adults with dark circles participated in the 8-week study, in which 47% of the testers noted "fair to moderate" improvement in their dark circles. The majority of testers noticed no change, but the treatment was well-tolerated.