India, May 8 -- You don't need to ask AI to write the script for a makeup ad. It's the usual plot: Woman applies lipstick/eyeliner/whatever, then suddenly feels like a confident baddie with main-character energy. Every sanitary pad promo ever claims you can be a New Woman if you just put on the right pad (the cramps and discomfort were in your head, OK?). It's advertising's default formula: The only thing standing between you and a better you is the product they're trying to sell.

Now, add science to the mix. No. Not your garden-variety of hyaluronic acid hydrators and collagen stimulators. The new superhero in a lab coat is Neurocosmetics. This is the branch of science that claims to have found a direct link between the brain and the sk...