The beauty world is rarely quiet, but every so often, a product creates a hum that’s impossible to ignore. Enter ROSYFOXY, a London-based label founded by Malaysian entrepreneur Lee Bin Hao that managed to become one of the top-selling serums (according to the information provided by the brand), on TikTok in Singapore within just a year of its debut.
But as any seasoned beauty writer knows, a viral moment doesn’t always equate to long-term results. To see if the brand’s star product (the ROSA Serum) lives up to the digital noise, two members of our team integrated it into their regimens for a full week.
The Science Behind the Bottle
Before we dived into the testing, we looked at the credentials. ROSYFOXY leans heavily into clinical credibility and advanced biotechnology. The serum is manufactured in South Korea at HANACOS Co. Ltd, a world-class facility, and features a premium Rose Stem Cell ingredient sourced from INNOVA BM in Bulgaria.
This isn’t just about smelling like a bouquet; these stem cells are rich in exosomes designed to support skin repair, regeneration, and overall resilience. On paper, the ingredient list is a “who’s who” of modern skincare: think multiple forms of Hyaluronic Acid (including the “super” acetylated version), Polyglutamic Acid for deep hydration, and soothing heavyweights like Madecassoside and Beta-Glucan.
The Seven-Day Trial
To get a rounded perspective, the serum was tested by two writers with very different profiles:
- Tester A: Mid-20s with a normal-to-dry complexion.
- Tester B: In her 40s with mature, sensitive skin.
Both writers were quick to note a caveat: seven days is a “first impression” window rather than a clinical trial. Results in skincare are deeply personal, influenced by everything from your existing regimen to your hydration levels and environment.
The Experience: Texture and Scent
The first thing both testers remarked upon was the sensory experience. The serum carries a delicate, soft geranium scent that feels sophisticated rather than synthetic.
In terms of texture, it hits that “sweet spot”—a slightly viscous, slippery feel upon first application that quickly settles into a lightweight, watery finish. It’s incredibly easy to massage into the skin and doesn’t leave the tacky residue that some high-hyaluronic serums are prone to.
The Results: Plumpness vs. Persistence
After a week of morning and night applications, the common denominator was “bounce.” Both writers reported that their skin felt noticeably more plump and hydrated immediately after use. It acted as a fantastic humectant, providing a smooth, “bouncy” canvas that played perfectly under their usual moisturisers and makeup.
Importantly, neither tester experienced any adverse reactions, breakouts, or stinging—a win for the writer with sensitive skin, as the formula contains botanical oils which can sometimes be a gamble for reactive types.
However, it wasn’t a “miracle in a week” for deeper concerns. Our tester in her 40s was keeping a close eye on her neck wrinkles, hoping for a visible softening. While the skin in that area felt more hydrated, the deeper lines remained unchanged. This is to be expected; collagen stimulation and the structural benefits of exosomes typically require a consistent 28-day skin cycle (or longer) to manifest.
The Verdict
Is the ROSA Serum worth the investment? If you are struggling with dehydration, a compromised skin barrier, or a dull complexion that needs a “reset,” the answer is yes, do give it a try and see if it works for you. The combination of Bulgarian botanical science and Korean manufacturing precision has created a formula that delivers genuine hydration and a healthy glow.
While we’ll need more time to see if those rose stem cells can tackle deep-set wrinkles, the immediate plumping and soothing effects make it a delightful addition to any vanity.