Brand from Japan: Dr. K. For smooth, radiant skin like a peeled egg.Formulated with Dr. K's unique formula, the highly stable and gentle retinol derivative is converted inside the skin to exert its effect.Formulated with a cocktail of useful ingredients for beautiful skin, niacinamide, vitamin C, and glutathione, which enhances clarity.In addition, to efficiently lead to beautiful skin, it contains glycolic acid, which softens the stratum corneum, human ceramide, which gives firmness to the stratum corneum, and mandarin clar(R).Formulated with a low irritation level, it leads to skin like a peeled egg.How to use:Before use, apply a thin layer of this product to the inside of your arm (about the size of a 10 yen coin), let it dry naturally, and check for any abnormalities on your skin.After toning your skin with lotion, etc., apply to the entire face.Can also use it on the corners of your eyes, under your eyes, and around your neck, where signs of aging are a concern.If you have sensitive sk