Matsuyama Yushi started manufacturing soap in 1946. Since the 1950s, synthetic detergents have been widely used in Japan, but Matsuyama Yushi continued to produce soap due to the need for capital investment. The M-mark series of additive-free soaps was born.

Additive-free soap" alone was not enough to appeal to customers in stores. Therefore, the company added "soap with salt" to solid soap, changed the raw material fats from beef tallow and coconut oil to palm kernel oil and safflower oil, and changed the alkaline agent from caustic soda to caustic potash, and produced kettle-fired liquid soap. Additive-free body soap, body soap with salt, shiso leaf hand soap (all no longer sold), and liquid soap for kitchen use were added to the product lineup.

Many people are interested in soap shampoos, saying that they are good for the scalp and gentle on the skin, but many say they cannot use soap shampoos because of their creakiness and stiffness. In response, we launched the Amino Acid Soap Shampoo, which uses basic amino acid (L-arginine) as an alkaline agent and contains amino acid soap with a pH lower than that of ordinary soap. The shampoo was well received, with customers saying, "This is a good shampoo to use.

Focusing on natural moisturizing factors that naturally exist in the stratum corneum. Based on the concept of "supplementing what is necessary without excess or deficiency," we launched "Amino Acid Skin Care," which contains amino acids and sodium PCA, natural moisturizing factors that tend to decrease due to the effects of the seasons and aging, as moisturizing ingredients. This was the catalyst for Matsuyama Yushi's transformation from a small factory specializing in soap to a skincare manufacturer, and at the same time, it grew into a long-selling product.

As people became aware of our products, the number of shipments increased significantly. The company moved some of its functions from the outgrown Sumida Plant to the Fuji-Kawaguchiko Plant, located at the northern foot of Mt. Fuji and began to manufacture machine kneaded soap, transparent soap, and skin care products. At the same time the factory was built, a deep well was drilled 200 meters underground. Fuji as raw material for skincare products.

Since its launch in 2005, Yuzu Body Lotion has been well received by our customers, and since around 2015, the number of shipments has increased rapidly. In addition to the feel of the lotion, which easily blends into the skin and keeps the skin moist inside the horny layer and dry on the surface, the fragrance of yuzu peel essential oil and the scent of real yuzu have resulted in continued use. The popularity of the product spread overseas through SNS.

Around 2015, our "Yuzu Body Lotion" was a big hit both in Japan and abroad!　In order to obtain a stable supply of high quality yuzu peel essential oil, we established our own citrus farm in Sanakawachi Village, Tokushima Prefecture, a citrus specialty area, to grow yuzu, sudachi, and other Japanese citrus fruits. Imported and customized extraction machines. We are now able to extract yuzu peel essential oil in-house using a proprietary process called "whole peel scraping ®" that does not compromise the aroma.