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BETULA PLATYPHYLLA JAPONICA BARK.

Valuable CAS 223748-09-2 / SKIN CONDITIONING

A nutrient-dense botanical extract sourced from the Japanese White Birch, known for its high concentration of restorative triterpenes. It functions as a precision repair agent that accelerates the skin's natural healing cycle while providing a robust defense against oxidative stress.

Skin Conditioning Antioxidant Soothing Barrier Repair

Science

This extract operates through a dual-action pathway: it activates Rho GTPases to drive keratinocyte migration for rapid barrier repair and simultaneously inhibits key inflammatory enzymes—including Phospholipase A2 and Cyclooxygenase (COX)—to halt the production of pro-inflammatory prostaglandins. Its high betulin and lupeol content also provides potent antioxidant activity by neutralizing free radicals and preventing lipid peroxidation at the cellular level.


Research

High confidence
Effective range 0.5–2%
Optimal

1%

Key findings

  1. 01 Concentrations of 5 µg/mL were shown to upregulate IL-6 and IL-8, critical for the inflammatory phase of tissue regeneration.
  2. 02 An IC50 of 2.4 µg/mL was established for significant antioxidant activity via DPPH radical scavenging.
  3. 03 Clinical guidelines suggest 0.5% to 2% for localized soothing and anti-inflammatory efficacy in topical applications.

Transparency

Not commonly dusted
Min. effective
0.5%
Red flag below
0.1%

While the extract shows bioactivity at very low micro-dosages (µg/mL), topical cosmetic benefits like soothing and antioxidant protection are best realized at concentrations between 0.5% and 2%.


The Formula

Solubility
Both
Optimal pH 4.5 – 7.5
0 7 14

Stability

The extract exhibits high stability in both aqueous and emulsion systems. While its triterpene components are naturally lipophilic, commercial versions are often standardized in glycerin or butylene glycol for seamless integration.

Synergies

  • Vitamin C (Antioxidant network)
  • Ceramides (Barrier repair)
  • Centella Asiatica (Advanced wound healing)

Safety

CIR Status
Safe as used
Pregnancy
Safe
Sensitization risk Low

Generally Regarded as Safe (GRAS) and non-irritating; shares a similar safety profile to Betula Alba.


Your Skin

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

Our Assessment

Valuable

An exceptional multi-tasking botanical that offers scientifically validated repair and antioxidant benefits for all skin types, particularly those with compromised barriers.


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References