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Fermented Soybean: effective % & pH 대두 발효 추출물

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Quick answer: Fermented Soybean: effective concentration ferment levels vary and are rarely disclosed, optimal pH 4.5–6.5, evidence Emerging. A conditioning ferment with a long culinary lineage. Judge the formula, not the ferment.

How much Fermented Soybean actually works? Here's the dosage, pH and evidence — the formulator-level read behind the % on a Korean label.

Effective %ferment levels vary and are rarely disclosed
Optimal pH4.5–6.5
EvidenceEmerging
Onset4–8 weeks

What the % on the label really means

A conditioning ferment with a long culinary lineage. Judge the formula, not the ferment.

⚠️ Ceiling: As with other ferments, no agreed effective concentration exists.

Fermented Soybean guide →How Fermented Soybean works →

Sources: PubMed — Fermented Soybean & skin ↗ · AAD skin-care basics ↗

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✍️ Written & reviewed by the KoreaPlus Editorial team — dermatologist-informed, cosmetic-science researched & source-cited. Last reviewed: 2026-08-23.

General educational information using cosmetic structure-function wording — not medical advice. Always patch-test new actives. © KoreaPlus.