FARMACY BRIGHTEN UP 3% TXA DARK SPOT TONER NO FURTHER A MYSTERY

So citric acid is an exfoliant, that will - the same as other AHAs - Carefully carry off the lifeless skin cells of your respective skin and allow it to be far more sleek and contemporary.   It might also purpose for a wetting and dispersing agent assisting insoluble particles like colour pigments or inorganic sunscreens (zinc/titanium dioxide)