It’s often said that eyebrows are the ultimate finishing touch to your makeup routine, helping to frame your face and define your features. But what happens when you lose your brow hair? From treatments like chemotherapy to conditions like alopecia, there are many reasons that the fine hairs on your brows can fall out, and in some cases, they never grow back.

That was the case for senior shopping writer Faith Richardson's mum Christine, who lost all of her brow hairs after undergoing chemotherapy. For years she tried different types of pencils and pens to mimic the natural hairs that she’d lost, but none gave quite the right natural finish that she was hoping for. However, the latest launch from Benefit, the , £26, was a total game changer.

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Christine said: “Although I’ve had some success with other brow products, this definitely gave me some of the most natural-looking results. The tips are so fine they really do look like real hairs until you get up close. Having three tips also made it much quicker and easier to do my brows – they were done in minutes! Not having much hair left makes it harder to follow a shape properly, but the was easy to change the angle of. Plus they lasted all day.”

The is said to have the finest brush tips of any brow pen around, with a tiny point of just 0.1 mm. It also has three individual brush tips spaced close together, which helps mimic the natural growth pattern of fine brow hairs whilst still allowing each line to be individually defined.

For those who want their brows to last them throughout the day – and anything your day includes – the is waterproof and sweatproof, smudge-proof and transfer-proof, Lasting up to 24 hours, you can wear it through a workout, a day at work and an evening out without worrying about your brows blurring or rubbing off.

The comes in a whole variety of shades too. At LookFantastic you can choose from five different colours including blonde, auburn and deep brown, whilst at – where the pen is currently , there are eight different shades to pick from.

For something that gives you multiple different types of brow products in one, the is a three-in-one eyebrow pencil, fine-tip pen and spoolie brush. The three different tools help define and shape existing brows, as well as fill in sparse and patchy hairs.

If you're looking for something to help boost brow hair growth, our beauty editor Laura swears by , while her mum – who has also been through chemotherapy – saw good results from the slightly cheaper , £37.