Some of our favourite social media stars are now convinced the best way to get your best skin is to use plain old water.
But don't just turn on the tap because the best way to get your face looking amazing is to use sparkling water.
Alicia Yoon of Korean beauty site , explained: "Some spas have used carbonated water to treat the skin.
"Sometimes it's soaking the face in this water, or the aesthetician may recommend soaking cotton pads with carbonated mineral water and dabbing them onto the skin (no tugging or rubbing) after cleansing.
"The idea is that instead of using just plain mineral water, they use carbonated water as well, creating a treatment that is even more nourishing and beneficial."
Not only does the sparkling water "help keep the cells between collagen fibres strong", but it also aids the "overall firmness and plumpness of the skin," added Alicia.
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Commonly known as the 'fizzy water facial' or 'fizzy facial cleanse', sparkling water is better for the skin because it has a pH which is lower than tap water.
It also helps to wash out the pores without too much harshness, and improves the efficacy of your other skincare products.
As well as removing dirt and grime from the skin, the bubbles in the water deliver oxygen to the skin’s barrier, which can tone down puffy areas for a smoother, more supple look.
Miami-based dermatologist, Roberta Del Campo, explained: "I am a tried-and-true proponent of this new trend, not only as a dermatologist but as someone who has implemented this into my skin-care routine. Bubbly water has a slightly acidic pH of 5.5, which coincidentally is the same pH as our skin. On the other hand, tap water has a pH of 7, which can disrupt the skin's outermost layer, leading to dryness and irritation."
Sparkling water also acts as a vasodilator, which can improve blood supply to your skin and result in a healthier, brighter, rosier complexion.
Before you break the bank stocking up on San Pellegrino, NYC-based cosmetic dermatologist Dendy Engelman, M.D. recommends stocking up on a soda maker, like Soda Stream.
Dr. Engelman explained: "It's a more eco-friendly way to get carbonated water, since you don't have to keep purchasing bottles of it.
"And the CO2 added to the water instantly lowers its pH levels, making it more skin friendly."
Although anyone can wash their face with sparkling water, Del Campo says it might take time for those with extremely sensitive skin to adjust to it.
She explained: "For some individuals with extremely sensitive skin, the skin will need to adjust over time and, therefore, there may be initial irritation if used daily."
For those wanting to get started, simply switch out tap water for sparkling - and either dab it on a cotton pad on your face or wash your face with it.