LactoGrain is a compound fermentation concentrate, which is a kind of original ecological product obtained by compound fermentation of Lactobacillus and rice, corn and other grains. It contains bacteria, grain nutrition and all active substances synthesized in the fermentation process. It gently cleans oil and dirt on the skin surface by physical adsorption, does not kill microorganisms, and can care for the skin barrier layer, reduce skin sensitivity, nourish and moisturize the skin, and restore the original ecology of the skin.