Chemical odours can be a very serious problem in our hair, as well as in our clothing and even our pets.

It’s easy to find out how to reduce the odour if you have a hair shampoo and a basic knowledge of how chemical compounds work.

But with so many different types of chemicals in the environment and everyday life, knowing how to recognise the chemicals in your own hair is difficult.

Here’s how you can help your hair to stay in style.