(LICORICE/REYNOUTRIA JAPONICA) ROOT/STEM EXTRACT

Antioxidant

88

Good

About (LICORICE/REYNOUTRIA JAPONICA) ROOT/STEM EXTRACT

A combined extract of two plants rich in antioxidants that soothes skin, reduces redness, and provides anti-inflammatory benefits.

Detailed Analysis

This extract combines Glycyrrhiza uralensis (licorice) root containing glycyrrhizin and glabridin, with Reynoutria japonica (Japanese knotweed) root rich in trans-resveratrol and emodin. Both plants have long histories of use in traditional medicine and food. The EU SCCS has reviewed glycyrrhizin derivatives and considers them safe at cosmetic concentrations; resveratrol is not restricted. Licorice compounds are listed in the EU Cosmetics Regulation with specific concentration limits for certain uses (e.g., glycyrrhizinic acid derivatives restricted to ≤0.1% in leave-on products for skin whitening claims).

What It Does

ANTIOXIDANT

Skin Benefits

  • ✓ Anti-inflammatory and redness reduction (glabridin)
  • ✓ Tyrosinase inhibition for brightening
  • ✓ Potent antioxidant from resveratrol and flavonoids

Known Concerns

  • ⚠ Glycyrrhizin may affect hormonal activity at very high oral doses; topical cosmetic use is safe
  • ⚠ Reynoutria japonica contains anthraquinones (emodin) in trace amounts; monitor for sensitivity

Safety Score

88

Good

Based on EU regulatory data, published safety research, and ingredient function analysis.

References

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EU CosIng Database

European Commission cosmetic ingredient registry

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This information is for educational purposes only and does not constitute medical advice. Always consult a healthcare professional for skin concerns or allergies.