Skincare products are a little like old friends:  Some grow and change, some stay the same, but only a select few stay in your heart forever.  The latter is the case for me with Estee Lauder Perfectionist Wrinkle Correcting Serum ($74.99, Amazon.com).  Although the serum was originally released nearly a decade ago, I never will forget how soft it made my skin the first time that I used it, and I’ve been a devoted fan ever since. The secret to the serum’s addictive softening effect turns out to be a combination of silicones.... read more