So Glow Lab took their yuzu, fermented it, and called it a Vitamin C serum. No pure L-ascorbic acid in sight. I almost rolled my eyes.
But here’s the thing — fermentation breaks the molecules down smaller. So this stuff might actually sink deeper than your standard $12 orange juice in a bottle. And it doesn’t sting like one.
It’s a lightweight serum, $28 for 30ml. The claim: fermented yuzu delivers vitamin C more efficiently because the skin doesn’t have to work as hard to break it down. Bold. I bit.
Fermented Yuzu Extract
Not just juice — it’s been cultured, so the active compounds are pre-digested, basically.
No Water First
Yuzu water is the base, not just an afterthought. Smells like a fancy cocktail.
pH Balanced
Sits around 5.5. No sting, no wait time. Just slap it on.
Photo: Harper Sunday / Unsplash
Fermented yuzu is the star, but it’s not alone. They added glycerin for hydration and a touch of tocopherol to keep it stable. No silicones, no fragrance oils — just citrus and science.
- Fermented Yuzu Extract: Smaller molecules = better absorption
- Glycerin: Actually hydrates, not just sits on top
- Tocopherol: Keeps the serum from going bad in 3 weeks
- Citric Acid: Natural pH adjuster, no harsh synthetic stuff
Texture is like thin honey — but not sticky. Absorbs in maybe 15 seconds. First few days I thought “huh, gentle.” Then week two, my skin looked… clearer. Less dull. Like I’d actually slept.
Unexpected: It made my sunscreen sit better. No pilling. No weird tackiness. That alone was worth the test.
After 3 weeks: My dark spots from old breakouts are visibly lighter. Not gone, but faded. Texture is smoother. What didn’t change: my fine lines. But that’s a retinol job, not a vitamin C one.
Fermentation isn’t a gimmick here — it actually makes the vitamin C work better for people who can’t handle the hard stuff. Not a miracle, but a smart upgrade.