Etude House 0.2 Therapy Air Mask- COLLAGEN (Bright Complexion) is an incredibly thin. hypoallergenic sheet mask that sits on the skin light and comfortable like air! This line of masks delivers "7-free" (Imidazolidinyl Urea. Polyacryamide. Triethanolamine. mineral oil. silicon oil. pigment. fragrance) essences to the skin directly through the 0.2mm air sheet. allowing remarkable air penetration to allow your skin to breathe comfortably. Having passed the sensitive panel test. water purified through a 6-step filtration system. and only including EWG green grade (grades 1 to 2) ingredients only. this sheet mask line is perfect for those with sensitive skin! The mask containing luminous pearl and Niacinamide. a skin whitening agent. makes dull look bright and radiant.