The craze of Korean beauty has been growing over the years and fans are obsessed with Cosrx's snail mucin essence after it went viral on social media.

The hydrating skincare, infused with powerful ingredients taken from the slimey snail mucin, can revitalise dull and tired skin and plump hydration to rough textured complexion. Use as the second step in your skincare routine after cleansing your face, this essence can boost other skincare products' benefits.

Shoppers can now buy the made-in-Korea Cosrx Advanced Snail 896 Mucin Essence for £11, instead of £21.99. You can save a further 5% when you buy four qualifying items in the promotion.

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Over 87,000 customers have tried the "miracle in a bottle" and gave an average 4.5 out of 5 star rating. A woman called it a "game-changer" after trying it on her sensitive skin as she explained: "After just a few weeks of use, my skin feels noticeably softer, plumper, and more radiant. The texture is lightweight and absorbs quickly without leaving any sticky residue. It's perfect for layering with other products."

The snail mucin essence works to repair skin barriers
The snail mucin essence works to repair skin barriers

Another who was sceptical to try the mucin essence said it was "surprisingly effective" and detailed: "I bought this snail essence as a private joke after seeing it going viral. It feels surprisingly pleasant to use, fresh and calming, and it is quickly absorbed.

"It is very economical to use. After the morning cleanse and tone, I pump one drop onto my hand and apply it as instructed with gentle fingertip patting. That one drop is enough to treat my whole face."

But some said it's "nothing special", with one sharing: "I’ve been using this product every day for three months and I’m afraid I can’t tell any difference at all. There is no change to my dark spots and my skin feels exactly the same as it did before. I don’t normally use anything on my face at all, so I can’t compare it to any other product, but I did think I would be at least able to tell I was using something. Maybe my skin just doesn’t need anything, who knows?"

Cosrx's snail mucin essence has gone viral on social media
Cosrx's snail mucin essence has gone viral on social media

The Cosrx Advanced Snail Mucin Essence can be paired with the Advanced All in One Cream, also on discount for £21.99, for enhanced moisture. Other than the snail mucin, the lightweight gel cream has collagen, elastin, glycolic acid and allantoin to deliver deep plumping effect to your skin.

The cream also soothes irritation and repairs skin barrier. People with acne-prone skin called it a "wonder cream" and said it "brought the redness of acne down in one application".

For people who are not a fan of snail mucin but still keen to try out Korean beauty products, Innisfree's Black Tea Youth Enhancing Treatment, £39, helps to instantly clearer and firmer, while the formula helps to maintain its oil and hydration balance and helps the skin to absorb the skincare treatments applied after more easily.

Leading Japanese skincare brand Suqqu's Aqufons Hydrating Lotion, £62, contains skin-loving geranium extracts and it's available to buy at Selfridges.