You've probably noticed the wave of hair freedom blowing in the last few years. Hair coloring is gradually being phased out, and a new trend is emerging: proudly showing off your salt-and-pepper hair.

From “Botched” to boxed dye. Fans flocked to Heather Dubrow’s Instagram page to wonder if her husband, Terry Dubrow, tinted his normally gray hair darker as the “Real Housewives of Orange County” star ...