29/07/2014 17:44 BST | Updated 20/05/2015 10:12 BST

How To Clean Makeup Brushes

We're often told to throw out-of-date cosmetics away in order to keep our makeup bags free from any health risks but when it comes to brushes, they can have a much longer shelf-life - as long as they're looked after properly.

Yes, this does mean cleaning is involved but the good news is, it doesn't require spending a fortune on specialist products and it's definitely cheaper than forking out for a whole new brush set.

So - what do you need to do the job on a rainy day at home? Turns out, baby shampoo or washing-up liquid are brilliant for this particular task.

Watch below to see Martha Stewart Living beauty director Melissa Goldstein show you her top tips for keeping makeup brushes in tact and totally dirt-free. They'll be good as new once you've tried out this secret...

Investing in the right makeup brushes will also help you to use more makeup more effectively. Want to know which tool to use for what? Professional make-up artist, Meera Shah, from The Makeup Store in London's Carnaby Street, explains how to use your brushes and reveals which ones are key to every woman's beauty routine below:

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