IOPE vs Su:m37° — side by side, no bias.
Our pick
Secret Essence
8.8/10 · Su:m37°
| Bio Essence Intensive Conditioning | Secret Essence | |
|---|---|---|
| Brand | IOPE | Su:m37° |
| Category | essence | essence |
| Editor Rating | 8.5/10 | 8.8/10 ★ |
| Category | essence | essence |
| Texture | Watery, milky essence | Clear watery essence |
| Finish | Luminous, smooth, plumped | Luminous absorbed |
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| Verdict | IOPE's flagship essence — a 28-year-old K-beauty icon often credited with originating the 'essence' category that SK-II later popularized in the West. The formulation is built around bifida ferment lysate (the same probiotic-derived ingredient in Lancôme's Génifique) and saccharomyces ferment filtrate (galactomyces' cousin), creating a fermented-actives cocktail that brightens, plumps, and supports the skin's microbiome over consistent use. Marketed as 'making clear and transparent skin in 28 days' — the kind of slow-burn improvement that's hard to photograph but easy to feel. At $92 it's expensive but consistent with the premium fermented-essence category. | LG's answer to SK-II Pitera — a naturally fermented essence that takes 50+ days in controlled fermentation tanks. The glow is real, the texture is water-thin, and the ferment is genuinely different from galactomyces. If SK-II is the J-beauty first treatment essence, Su:m37° is the K-beauty equivalent. |
