In the PRO-Semigel 50 mask pack,
the semi-gel sheet is made of natural bamboo non-woven fabric with a special reaction technology to lighten the weight and contain much moisture. Unlike the normal sheet, the semi- igel sheet adheres like my skin and does not easily fall off the face. Hydroxy Group (-OH) is replaced with hydrophilic Carboxymethyl Group (-CH2COO-) to maximize the ionic property, and absorb heavy metals remaining on the skin and then fall off to create clean skin.