Unexpectedly discovered by the SK-II scientists when they noticed the aged sake brewers showed signs of aging in their faces yet their hands remained youthful due to exposure to a rare ingredient. After careful research into this event, PITERA was derived from a strictly maintained fermentation process and infused into the skin care products from SK-II.

Unexpectedly discovered by the SK-II scientists when they noticed the aged sake brewers showed signs of aging in their faces yet their hands remained youthful due to exposure to a rare ingredient. After careful research into this event, PITERA was derived from a strictly maintained fermentation process and infused into the skin care products from SK-II.