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BARNARDIA JAPONICA BULB EXTRACT.

Valuable

A sophisticated botanical bioactive derived from the Japanese hyacinth, prized in high-performance East Asian skincare for its dual-action defensive and restorative properties. It serves as a potent guardian of the skin's structural integrity by preventing the enzymatic breakdown of essential moisture molecules.

Antioxidant Hyaluronidase Inhibitor Skin Conditioning Anti-inflammatory Antimicrobial

Science

This extract utilizes a complex profile of scillascillosides (saponins) and homoisoflavonoids to inhibit hyaluronidase, the enzyme responsible for degrading hyaluronic acid. By maintaining the skin's natural glycosaminoglycan levels, it preserves hydration and structural density while simultaneously suppressing the release of beta-hexosaminidase to mitigate allergic and inflammatory responses.


Research

Medium confidence
Effective range 0.1–1%
Optimal

1%

Key findings

  1. 01 In vitro testing at 1.0% concentration demonstrated a 48.2% inhibition of hyaluronidase activity, confirming its role in matrix protection.
  2. 02 A 1.0% inclusion rate achieved an anti-oxidative index of 33.2, effectively neutralizing lipid peroxidation in linoleic acid systems.
  3. 03 Low-dose application at 0.1% showed significant antimicrobial efficacy against S. aureus and E. coli, supporting microbiome balance.

Transparency

Commonly dusted
Min. effective
0.5%
Red flag below
0.05%

Due to its presence in premium luxury formulations, it is often included at negligible 'claim-only' levels. Efficacy for skin-matrix protection specifically requires concentrations closer to 1.0%.


The Formula

Solubility
Water
Optimal pH 4 – 6.5
0 7 14

Stability

Highly stable in aqueous systems and glycerin bases. Requires opaque packaging to protect sensitive phenolic compounds from UV-induced degradation.

Synergies

  • Hyaluronic Acid
  • Glycerin
  • Vitamin C

Conflicts

  • Strong oxidizing agents
  • High-alkalinity environments (pH > 8.0)

Safety

CIR Status
Not reviewed
Pregnancy
Safe
Sensitization risk Low

Recognized by the EU CosIng database as a safe antioxidant and conditioning agent; no restrictive limits established by SCCS or FDA.


Your Skin

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Valuable

An exceptional multi-functional botanical that excels at preserving skin hydration and preventing inflammatory aging when formulated at active concentrations.


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