TikTok has been responsible for giving us many a beauty trend. From mixing skincare ingredients to using powder for volumised lashes – when something takes off on TikTok, it becomes hard to ignore. But while some viral beauty trends serve us major inspiration and introduce us to some great beauty products, others are a little more questionable. And this is why it’s always a good idea to get an expert’s opinion on the matter.

The viral trend doing the rounds at the moment? Using glycolic acid on your underarms to stop excessive sweating. While we all sweat (which is, of course, extremely normal and serves a very useful purpose), if the past few scorching summer weeks have had you googling how to sweat less – you’re not alone. But is glycolic acid really the way forward?

Glycolic acid – a common AHA used in skincare – works to exfoliate the top layer of skin, revealing fresh, brighter, glowing skin beneath. While this might be great for the skin on our faces, we’re not really sure how it would work on our underarms? Plus, using expensive skincare products on your armpits isn’t going to help you through a cost of living crisis. So, we spoke to three skincare experts to see if we really should be following TikTok’s advice on this one.

Will glycolic acid on my underarms really help me to sweat less?