I slapped this on at 7am and immediately regretted it. By 9am my SPF was peeling off in little white flakes.
Turns out the real answer is: use it at night, unless you enjoy looking like a shedding snake at your 10am meeting.
It’s a Korean ferment serum from Round Lab that costs about $28. The claim: “strengthens the skin barrier overnight.” I bought it because I’m a sucker for anything that says “ferment” and “barrier” in the same sentence.
Soybean ferment extract
Not the same as straight soy sauce — it’s actually gentle and smells like nothing
Slightly sticky texture
Feels like watered-down honey. Not greasy, but not lightweight either.
Pill factor
High. If you layer anything thick on top, you’re asking for trouble.
Photo: Poko Skincare / Unsplash
Four main players, and none of them are just filler. The ferment process breaks everything down so it actually sinks in — no sitting on top of your skin like a lazy roommate.
- Soybean Ferment: Strengthens barrier + adds bounce
- Niacinamide: Brightens and calms redness
- Panthenol: Locks in moisture without suffocating
- Betaine: Light hydration that doesn’t clog
Photo: Kimia Zarifi / Unsplash
First pump: watery, slightly tacky, absorbed in about 15 seconds. I thought “meh, another hydrating serum.” Then I woke up the next morning and my face felt… plump. Not greasy, not tight — just *full*.
Week two hit and I started using it every night. By week three, my cheeks looked less like a wrinkled napkin and more like a marshmallow. Unexpected: it actually reduced the redness around my nose. No one told me that.
My barrier feels stronger — fewer random dry patches, less stinging when I use actives. But my fine lines? Still there. It’s not a miracle worker, just a solid overnight hydrator.
Keep it in your PM rotation and never let it touch your morning routine unless you want to fight with your SPF. It’s a solid barrier buddy, not a daytime date.