New Delhi, Sept. 12 -- For decades, learning make up meant learning from a person. I remember when the best way to understand a technique was simply to stand beside an artist and watch. You observed how they held a brush, changed their approach from one face to another and, most importantly, why they made those choices.

Today, a teenager with a smartphone can access thousands of tutorials before purchasing their first foundation. That shift is extraordinary and, in many ways, empowering. One can now learn from artists and experts across the world, discovering different ways of accentuating features and exploring products suited to varied skin tones, types and preferences.

Having worked as a make-up artist for over 25 years, I have witne...