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CASUARINA STRICTA BRANCH/LEAF EXTRACT.

Valuable CAS - / SKIN CONDITIONING

Derived from the Australian Drooping She-oak, this potent botanical extract is a rich source of rare ellagitannins and flavonoids. It serves as a multifunctional bioactive that bridges the gap between traditional herbal wisdom and modern cellular protection.

Antioxidant Anti-inflammatory Skin conditioning Soothing

Science

The extract utilizes a high concentration of C-glycosidic ellagitannins, specifically Casuarinin and Stachyurin, to neutralize free radicals and protect dermal fibroblasts from oxidative damage. Furthermore, it modulates the skin's inflammatory response by reducing nitric oxide production, effectively targeting 'inflammaging' to preserve the skin's structural integrity.


Research

Medium confidence
Effective range 1–5%
Optimal

2.5%

Key findings

  1. 01 In vitro analysis confirms that the primary compound, Casuarinin, significantly inhibits pro-inflammatory mediators and provides robust antioxidant defense for dermal cells.

Transparency

Commonly dusted
Min. effective
1%
Red flag below
0.5%

Because it is an exotic Australian botanical, it is frequently used at 'label claim' concentrations below 1%. To achieve the anti-inflammatory benefits demonstrated in phytochemical profiles, a concentration of at least 1-2% is required.


The Formula

Solubility
Water
Optimal pH 4 – 6.5
0 7 14

Stability

Highly stable in water-based systems. It is thermolabile and must be incorporated during the cool-down phase (below 40°C) to maintain the bioactivity of its phenolic compounds.

Synergies

  • Vitamin C
  • Glycerin
  • Hyaluronic Acid

Conflicts

  • Strong oxidizing agents
  • Gelatin-based thickeners
  • Certain protein complexes

Safety

CIR Status
Not reviewed
Max tested
5%
Pregnancy
Safe
Sensitization risk Low

Recognized as safe for topical application based on supplier safety data and historical use in traditional medicine; however, formal CIR review is pending.


Your Skin

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

Our Assessment

Valuable

An exceptional secondary antioxidant and soothing agent for high-performance formulas targeting environmental stress and age-related inflammation.


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