Brand from Japan: Quality First. 4 Types of high-concentratio vitamin C and 25% niacinamide are dissolved in yeast extract (galactomyces culture solution) to create an authentic pore serum.With its unique nanocapsules and new delivery system, it spreads beauty ingredients to every corner of the skin, demonstrating its overwhelming ability to treat all kinds of pore problems, including blackheads, sagging pores, and uneven pores.The affordable price of 2,000 yen for 30 mL of concentrated pore care serum with high concentration vitamin C is also attractive.How to use:Take an appropriate amount from the dropper and apply it to the entire face, focusing on areas of concern.