7 well-loved K-beauty ingredients and the popular products that use them
As skincare literacy improves, the average beauty consumer is no longer swayed by packaging alone. Instead, they are learning to scrutinise ingredient lists, seek clinical studies and weigh benefits against potential side effects. The K-beauty world, once seen as all cushion compacts and cutesy serums, is now valued for its commitment to skin barrier science and time-tested botanicals. Below, we break down seven of the most trusted K-beauty ingredients—and the standout products that put them to work.
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Snail mucin
Often hailed as a miracle ingredient in K-beauty, snail mucin is prized for its ability to deeply hydrate and repair the skin. It contains glycolic acid, zinc and proteins that accelerate skin regeneration, making it ideal for treating hyperpigmentation, fine lines and scarring. Beyond its healing properties, snail mucin also helps maintain moisture levels without feeling sticky, leaving skin plump and smooth. It’s no surprise that snail mucin is a staple in many Korean skincare routines, especially for those looking to repair and rejuvenate their complexion.
Found in: COSRX Advanced Snail 96 Mucin Power Essence, a cult favourite that layers well and doesn’t feel tacky
Centella asiatica
Centella asiatica, often referred to as cica, is a powerhouse herb in K-beauty known for its soothing and anti-inflammatory properties. Rich in saponins, amino acids and antioxidants, cica promotes faster healing of the skin, making it a go-to ingredient for acne-prone and sensitive skin. It also strengthens the skin barrier, reduces redness and calms irritation, making it particularly beneficial for those with skin conditions like eczema or rosacea. Cica’s ability to gently calm and repair irritated skin has led to its widespread use in K-beauty products like essences, toners and serums.
Found in: Skin1004 Madagascar Centella Ampoule, a single-ingredient formula with no unnecessary extras
Propolis
Propolis, the resinous substance collected by bees, has become a key ingredient in K-beauty for its antibacterial, antioxidant and anti-inflammatory effects. It is known to help treat acne and improve the overall health of the skin barrier. Propolis is rich in flavonoids and phenolic acids, which help to neutralise free radicals, boost hydration and promote a more even skin tone. For anyone with oily or acne-prone skin, propolis is a must-have ingredient, offering an effective way to balance oil production and reduce inflammation while enhancing the skin’s natural defences.
Found in: Beauty of Joseon Glow Serum: Propolis + Niacinamide, a brightening serum that doesn’t irritate
Mugwort
Mugwort, or ssuk in Korean, has a long history of use in traditional Asian medicine for its detoxifying and anti-inflammatory properties. Rich in vitamin E, antioxidants and essential oils, mugwort helps balance and purify the skin, making it particularly effective for those with acne-prone or irritated skin. It can also provide a boost of hydration while soothing inflammation and calming redness. In K-beauty, mugwort is often found in products like essences and masks, offering a gentle but effective way to treat and prevent breakouts while promoting a clearer complexion.
Found in: I'm From Mugwort Essence, a minimalist formula that delivers visible calming effects
Rice extract
Rice extract is a staple in traditional beauty routines across Asia, especially in Korea. Rich in amino acids, antioxidants and ferulic acid, rice extract has the power to brighten, smooth and strengthen the skin barrier. It helps even out skin tone, reduces dark spots and hydrates deeply, making it ideal for dry or dull skin. Additionally, rice extract has mild exfoliating properties, helping to gently remove dead skin cells and promote cell turnover. It’s often incorporated into toners, serums and masks, delivering noticeable radiance and improving the skin’s texture.
Found in: Haruharu Wonder Black Rice Hyaluronic Toner, a lightweight, antioxidant-rich base layer
Fermented ingredients
Fermented ingredients, such as yeast and fermented soy, have become a major trend in K-beauty for their ability to enhance the potency and absorption of active ingredients. Fermentation breaks down complex compounds into smaller, more absorbable molecules, allowing them to penetrate the skin more effectively. This process also produces beneficial probiotics that support a healthy skin microbiome. Products containing fermented ingredients are praised for their ability to hydrate, renew and brighten the skin, making them an excellent choice for those looking to address signs of ageing or uneven skin tone.
Found in: Missha Time Revolution The First Essence 5X, often compared to luxury Japanese essences, minus the price tag
Ginseng
Ginseng, an age-old staple in Korean medicine, is known for its energising, firming and antioxidant properties. Rich in ginsenosides, ginseng helps to stimulate circulation, boost collagen production and protect against environmental stressors. This makes it an ideal ingredient for anti-ageing skincare, as it works to reduce the appearance of fine lines and improve skin elasticity. Ginseng also helps combat fatigue in the skin, giving the complexion a brighter, more youthful appearance. Popular in serums, creams and masks, ginseng remains one of K-beauty’s most revered ingredients for skin vitality.
Found in: Sulwhasoo Concentrated Ginseng Renewing Cream EX, a high-end cream with decades of R&D behind it
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