Kelp / Laminaria Extract: effective % & pH 다시마
⏱ 1 min read
⚡ Quick answer: Kelp / Laminaria Extract: effective concentration typically 0.1–5% as an extract, optimal pH 4.0–7.0, evidence Limited. A decent humectant in the mid-list. Ignore any claim that it draws impurities out of skin.
How much Kelp / Laminaria Extract actually works? Here's the dosage, pH and evidence — the formulator-level read behind the % on a Korean label.
| Effective % | typically 0.1–5% as an extract |
|---|---|
| Optimal pH | 4.0–7.0 |
| Evidence | Limited |
| Onset | immediate (feel) |
What the % on the label really means
A decent humectant in the mid-list. Ignore any claim that it draws impurities out of skin.
⚠️ Ceiling: High levels add slipperiness and a marine smell rather than more hydration.
Kelp / Laminaria Extract guide →How Kelp / Laminaria Extract works →
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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.