StriVectin says it has trademarked Tech Neck, a line of neck products designed to address a very modern concern: tech neck. More delicate than the skin on the face, the neck is one of the first places to show age, and handheld technologies like smartphones and iPads may be making matters worse by causing wrinkles that can lead to horizontal neck lines and sagging skin known as “tech neck.”   Driven by research on modern day skin aggressors and findings showing the average person...