Over the last few weeks, I introduced on my Instagram (#sarahglowtips) the concept of layering an essence toner 3-4 times with the goal of maximizing skin hydration. I’ve been using this method myself for nearly a year, particularly when I am feeling travel-weary, and have fallen in love with how well it works to renew and refresh dehydrated and tired skin. Find all my tips on Instagram! Now, as we...