Dull, ageing and patchy skin needs rejuvenation and 'Exfoliation' is an excellent process and remedy to bring up the new even-toned skin cells on the surface giving it a fresh look. Normal exfoliating products can not reach the Dermis (the middle layer of the skin) level and hence the effect is limited only upto the Epidermis level( top layer of skin). AHAs are excellent Exfoliators. They help remove the top layers of dead skin cells, reach deeper, unclog the pores and help rejuvenating the skin cells depending upon the molecular size of the agent. Glycolic acid works as an excellent Peeling agent and higher concentration can be used only under an expert's medical supervision to have the visible effects. Glycolic acid, Lactic Acid, Malic Acid, Mandalic acid and Trataric Acids are AHAs which have different molecular sizes and work amazingly well at different stages.