It’s been a year of growth for hair lighteners, but you may need to rethink your hair routine

Hair lighteners have been a huge hit with consumers, with sales of their products reaching $7 billion in the US in 2016 alone.

So how have they managed to make such a huge impact?

In this series of posts, Mashable explores how the industry has evolved in the past year and how we can get the best out of our hair products and products we already use. 

This article originally appeared on Mashable. 

For more on the beauty and wellness of hair products, head over to Mashable’s Beauty and Wellness section.