HIJIRIKO - In the 1960s, a well-known potter found this unique material (Mt. Fuji volcanic mud) while working and realized it was the mineral-rich mud that was protecting their hands keeping them wonderfully smooth and problem-free. People in the area where the mud was mined used it for traditional remedies because of its high quality and skincare factors. In 1972 permission was granted for use as a quasi-drug. It first took the form of a bath additive and then later was reborn as a skincare series. All Hijiriko series contain treasured Mt. Fuji volcanic mud and the efficacy of this mud is mainly for smoothing and detoxing the skin.