Get white teeth while you sleep! This £10 teeth whitening pen reverses 15 YEARS of discoloration in just three weeks - and it's half price

 SHOPPING – Contains affiliated content. Products featured in this Mail Best article are selected by our shopping writers. If you make a purchase using links on this page, Dailymail.co.uk will earn an affiliate commission. Click here for more information.   

Our time spent sleeping isn't usually hugely productive, but some shoppers are saying that they've been getting their teeth whitened while dozing off, thanks to this whitening pen.

The Colgate Max White Overnight Teeth Whitening Pen is currently on sale for only £10, instead of the usual £20 - that's 50 per cent off.

Colgate Max White Overnight Teeth Whitening Pen 

This teeth-whitening pen is on offer at the moment. Instead of £20, it will cost you only £10 - a huge saving of 50 per cent off.

It's enamel safe, so you don't need to worry about damaging your precious enamel. It also lasts 35 nights - so it won't be all used up fast. 

Amazingly, the brand also says that the pen reverses 15 years of discolouration in just three weeks.

£10 (save £10) Shop
Hot deal: you can now get the Colgate Max White Overnight Teeth Whitening Pen for over half price as it costs just £10, instead of £20

Hot deal: you can now get the Colgate Max White Overnight Teeth Whitening Pen for over half price as it costs just £10, instead of £20

The whitening pen makes getting whiter teeth cheap and easy - there's no need for pricey trips to the hygienist or big bills from the dentist. Instead, just spend around five minutes before bedtime and get a good night's kip. 

The brand says using the whitening pen like this for three weeks reverses 15 years of discolouration. So, all those years of meeting pals for frothy mocha lattes at coffee shops and drinking red wine on school nights could vanish from your teeth.

One pen will give you 35 nightly treatments, which works out as only costing you less than 30 pence a night - cheaper than your favourite takeaway coffee order

One pen will give you 35 nightly treatments, which works out as only costing you less than 30 pence a night - cheaper than your favourite takeaway coffee order

Even though the pen will cost you just £10, you'll get 35 nightly treatments from it. This means that works out as costing you less than 30 pence a night (cheaper than a daily takeaway coffee order). 

Not only does this product whiten teeth, but it is enamel-safe. This means that it doesn't damage that thin outer layer of the tooth. 

If you have damaged enamel, you could find your teeth becoming more damaged and stained easily (eek!). Once enamel is gone, it's gone as it can't be regenerated - it's precious stuff! 

Other whitening products can damage enamel, making this enamel-safe pen even more of a gem. Indeed, Amazon shoppers have been leaving great reviews of it, noting how much it has proved the look of their smile. 

A damaged enamel means that you could find your teeth becoming more damaged and stained easier

A damaged enamel means that you could find your teeth becoming more damaged and stained easier 

'I'm very pleased with this Overnight Teeth Whitening pen from Colgate,' one reviewer wrote. 'At £19.70, it seems like a reasonable price to pay for something that’s easy to use and works as intended.'

'It works!' another shopper shared. 'I had a lot of discolouration and stained craze lines and within a month my smile is definitely improved!'.  

'Hands down brilliant!' a third raved. 'After years of drinking wine and coffee, my hygienist always made a big deal about the discolouration/staining, especially between the teeth. I thought I would give this a go and after just three nights, I'm astounded by the difference.'

So, if you'd like to use a product that works its magic while you hit the hay, then Colgate Max White Overnight Teeth Whitening Pen should be a good buy.   

The comments below have not been moderated.

The views expressed in the contents above are those of our users and do not necessarily reflect the views of MailOnline.

We are no longer accepting comments on this article.