The soy yogurt face pack "Tama no Koshi" from the Moritaya tofu company has been one of the top selling facial masks on the Daimaru Department store webshop. It contains a mixture of soy-based yogurt, lactoferrin (LF) and royal jelly to brighten and soften the skin. To use the mask, apply a generous amount of the product to the whole face and leave it on for 5-10 minutes. Because the mask is quite thick and sticky, it is recommended that you use a cotton ball or pad to remove some of the product before washing it completely off with water.
Though the mask is advertised as a mild skincare product free of dyes or parabens, it contains alcohol and fragrance. After I washed off Tama no Koshi, I found that my face was completely covered in large red bumps. Though my skin did feel softer, it was itchy and irritated and took a couple of days to completely recover. According to reviews at @cosme, may others have also had poor experiences with this mask. There are a number of positive reviews of Tama no Koshi but my own experience makes me reluctant to recommend this product to anyone. Tama no Koshi is 1,575 yen (including tax) not including shipping.