The $20 medicube Collagen Jelly Cream has gone K-beauty viral —but does it actually work?

The medicube Collagen Jelly Cream has been all over my feed, so I had to really test it for weeks to find out whether the viral hype was actually deserved.
I’ve been testing just about every medicube product under the sun over the past several months, and the Collagen Jelly Cream has become one of my favorite products for a fresh, dewy finish. While plenty of skincare launches promise glass skin in a jar, this one has earned a permanent spot in my routine because it delivers exactly the kind of hydrated glow I want without feeling heavy or greasy.
The bright pink gel texture is the first thing you’ll notice. It looks almost like a dessert, but it melts into the skin fast. Instead of sitting on top of my face, it absorbs quickly while leaving behind a bouncy, healthy-looking sheen. I reach for it both in the morning before makeup and at night as the last step in my routine.
The formula contains hydrolyzed collagen, niacinamide and squalane, along with moisturizing ingredients that help support the skin barrier. It’s worth noting that topical collagen doesn’t rebuild the collagen deep within your skin — that’s a common misconception. Instead, it works as a humectant and conditioning ingredient, helping the skin feel smoother and more hydrated.
The niacinamide helps brighten the complexion over time, while squalane adds lightweight moisture that doesn’t clog my pores.
After using it consistently, I’ve noticed my skin looks plumper, especially on mornings when I’m feeling a little dehydrated. Fine lines around my forehead seem less noticeable simply because my skin stays hydrated throughout the day. It also layers beautifully with sunscreen and foundation without causing pilling, which isn’t always the case with richer moisturizers.
For $20, it’s also one of the more affordable products that’s gained traction in K-beauty circles recently. Considering how little product I need for each application, and a jar lasts longer than I expected, which makes the price feel even more reasonable.
Does it actually work? If you’re expecting a moisturizer to replace professional collagen treatments or erase wrinkles overnight, the answer is no. But if your goal is hydrated, glowing skin that looks healthier and feels incredibly soft, I think the Collagen Jelly Cream absolutely lives up to the attention it’s received online.
It’s become one of the medicube products I consistently recommend because it’s simple, effective and gives my skin that glossy, well-rested look that keeps me reaching for it day after day.
This article was written by Victoria McDonnell, New York Post Commerce Journalist & Content Strategist, who has spent countless hours researching, testing hundreds of products and comparing the latest makeup, skincare, hair and beauty items and trends to determine what’s truly worth your hard-earned cash. She evaluates formulas, textures, ingredients and more, in addition to consulting medical and industry experts. Some of Victoria’s latest conquests include testing the best sheet masks on the market, and a rinse-and-repeat review of the best shampoos for all hair types and budgets. Victoria, who received a beauty industry essentials certification from the Fashion Institute of Technology, has been creating shopping guides for the New York Post since 2021 and previously held positions at Insider Reviews and CNN Underscored.