Kate Middleton, 44, is proof that meticulous care—along with good genes—pays off when it comes to the health and appearance of one’s hair. As the years go by, the hair shaft tends to thin out, resulting in strands that are more fragile, dull, and brittle. This is a natural process that can be delayed with a consistent and targeted hair-care routine, but it often leads many women over 40 to cut their hair, opting for short or medium-short styles that are easier to manage.
This is a…

