India, Nov. 1 -- City life buzzes with vibrant colors, energy, and movement, which is precisely why being out and about in the city is so exciting. Meanwhile, dust and fine particles accumulated from exhaust fumes, construction, and smog settle on hair and scalp. They combine with natural oil and sweat, creating a layer that may not be noticeable at first glance. This dulls your hair by scattering light instead of letting it reflect off the hair surface.

"Dryness can also happen similarly. Build-up can irritate the scalp, and vigorous scrubbing can remove the lipids needed to keep hair soft. Pollutants can also cause oxidative stress that eventually damages the hair's protective coating. Fortunately, a few thoughtful habits can restore h...