Pictures taken using Visia CR under cross-polarised light confirmed the whitening effect of Diglucosyl Gallic Acid used at 2% (fig 19). Diglucosyl Gallic Acid brightens the skin colour of full hemi face treated and helped to even skin tone. A decrease of skin pigmentation was also noticed in hyperpigmented areas as seen in the pictures below by white circles. The skin tone is also more homogenous.