I Tested 4 Viral K-Beauty Products Taking Over Social Media—Here's What Actually Delivers

The bottom line on viral K-beauty products

Viral K-beauty products are trending Korean skincare formulas popular on social media for promising glass skin, bouncier texture and gentle cleansing using ingredients like PDRN, vitamin C and rice-based botanicals, but only thorough personal testing shows which ones genuinely improve hydration, radiance and comfort over time and which ones are driven mainly by marketing hype. During several weeks of trying Anua’s PDRN skincare range, two Medicube moisturisers and the Arencia Rice Mochi Cleanser, I found two clear winners and two solid-but-conditional buys. If you want glow and hydration without upsetting your skin barrier, there is real value here, especially in the Anua and Arencia launches. At the same time, the Medicube creams prove that even bestselling viral K-beauty products need careful use and realistic expectations.

Anua PDRN skincare range: the clearest glass skin payoff

PDRN (Polydeoxyribonucleotide) is a popular skincare ingredient known for supporting the skin's natural repair process, helping to boost hydration, improve elasticity and leave skin looking smoother, plumper and more radiant. Anua’s PDRN skincare collection builds a whole routine around this, and in my testing it is the most convincing glass skin upgrade of the four brands. The caffeine rejuvenating eye cream has a cooling metal tip that turns application into a small spa moment and sinks in quickly, making the eye area look less tired and more hydrated. The hyaluronic acid hydrating capsule mist was the surprise favourite: one pass over my face left it refreshed, dewy and glowing without a sticky film, and it became an easy extra step that still made a noticeable difference. The collagen melting patches, used with the mist, gave the best instant payoff; afterwards, my skin felt firmer, smoother, incredibly hydrated, with a glass skin glow that matched what social clips promise. For me, the Anua PDRN skincare range is the one I would repurchase first when chasing a polished, high-radiance finish.

Medicube moisturizer review: clever textures with clear limits

Medicube has become one of the biggest names in viral K-beauty products, with creams that often sell out after going viral online. I used the Deep Vitamin C Capsule Cream and Collagen Jelly Cream in my regular routine to see whether they earn that attention. The Vitamin C Capsule Cream stands out visually: bright yellow capsules sit in a clear gel, and you mix them depending on how much hydration you want, creating a customisable formula that feels unusual but welcome, though a little faffy. The cream contains vitamin tree water, multiple forms of vitamin C and niacinamide to brighten dull skin while adding moisture. After a couple of weeks, my skin looked fresher and more radiant; dark marks did not vanish, but my tone looked more even with a healthy glow through the day. The downside is clear: use too many capsules and it becomes rich and heavy, especially in warm weather or on an oily T-zone, so you need to mix small batches and respect the brand’s advice to lean on more gel for a lighter finish.

If the Vitamin C cream is about radiance, the Collagen Jelly Cream is about hydration and slip under makeup. The texture is a bouncy, translucent jelly that feels cool on the skin and sinks in faster than expected, leaving it well moisturised but not greasy. It became my favourite of the two because it suited heat and humidity: my skin felt plumper and gained the dewy finish associated with Korean skincare, and foundation applied more smoothly over it. It is also pleasant to use once you get past the slightly odd jelly feeling, which took me a few days to adjust to. The main caveat is for very dry skin types, who may still need a richer cream on top, since the jelly is intentionally lightweight. After several weeks, I would say the viral attention is not undeserved: both Medicube moisturisers feel well formulated, enjoyable to use and leave skin looking healthier and more hydrated, but they are not universal fixes and demand some trial and error with texture and mixing.

Rice Mochi Cleanser: dough-like texture, serious gentle cleansing

The Arencia Rice Mochi Cleanser is one of the more distinctive trending Korean skincare launches because of its dough-like texture and soft rice concept. As a K-beauty brand, Arencia has become known for its rice mochi cleansers and botanical serums aimed at sensitive or blemish-prone skin. I had seen plenty of praise and wondered whether it was just another skincare trend, but the formula impressed me more than the texture. Where many cleansers leave my face tight and dry, this one felt gentle: my skin was soft, comfortable and thoroughly cleansed after each use, without that stripped feeling. The mochi-inspired consistency feels almost like handling a soft dough in your palms before it turns into a creamy wash, and it still rinses off easily without residue. Combined with the brand’s botanical focus, it quickly became one of those cleansers I reached for daily because my skin felt balanced afterwards. The Arencia Rice Mochi Cleanser is available on Amazon for £12.28, reduced from £14.80, which is a 17% saving in a limited-time deal.

Buy if / Skip if

• Buy the Anua PDRN skincare range if you want visible glass skin radiance and smoother texture from a repair-focused routine built around PDRN’s hydrating and elasticity-boosting benefits.
• Skip the Anua PDRN skincare range if you dislike multi-step routines or prefer more matte, non-dewy finishes over a glass skin glow.
• Buy the Medicube Deep Vitamin C Capsule Cream if you enjoy customising textures and want brighter, more even-looking skin with a glow that builds over a couple of weeks.
• Skip the Medicube Deep Vitamin C Capsule Cream if your skin is oily, you live in warm conditions, or you do not want to fuss with mixing capsules and gel each time.
• Buy the Medicube Collagen Jelly Cream if you want lightweight hydration, plumper-looking skin and a cooling jelly that sits smoothly under makeup without feeling greasy.
• Skip the Medicube Collagen Jelly Cream if your skin is very dry and you rely on thick, occlusive moisturisers or if jelly textures feel too odd to you.
• Buy the Arencia Rice Mochi Cleanser if you have sensitive or blemish-prone skin and want a gentle but thorough cleanser with an unusual, dough-like texture that leaves skin soft and comfortable.
• Skip the Arencia Rice Mochi Cleanser if you prefer fast-foaming gels or micellar waters and do not want a sensory, mouldable cleanser step, even at its current Amazon price point.