Here’s Part II of my series on hydroxy acids! I discuss FOUR different HAs that represent the old and new generations of this remarkable family of compounds! http://www.futurederm.com/2012/05/03/hydroxy-acids-part-ii-the-differences-between-glycolic-acid-salicyclic-acid-lipohydroxy-acid-and-gluconolactone/ Let me know what you think! Thanks!