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CASEARIA SYLVESTRIS LEAF EXTRACT.

Valuable CAS 223748-16-1 / SKIN CONDITIONING

A biologically active botanical derived from the South American Guaçatonga tree, specifically engineered to reinforce the skin's structural scaffolding. It functions as a dual-action restorative agent that simultaneously accelerates tissue reorganization and defends against enzymatic degradation of the extracellular matrix.

skin conditioning antioxidant soothing firming elastin-booster

Science

This extract functions as a genomic activator for skin density by upregulating the expression of tropoelastin and lysyl oxidase (LOX), the enzyme essential for cross-linking elastin fibers. Beyond synthesis, it provides protective coverage by inhibiting elastase—the enzyme responsible for fiber breakdown—and modulates the inflammatory cascade by suppressing Phospholipase A2 (PLA2) and neutralizing free radicals through enhanced Superoxide Dismutase (SOD) activity.


Research

High confidence
Effective range 0.0001–10%
Optimal

2.5%

Key findings

  1. 01 In vitro gene expression analysis (US Patent 2016/0220476 A1) demonstrating significant increases in tropoelastin and LOX production.
  2. 02 Histological parameters study (2022) showing improved angiogenesis and capillary permeability for accelerated skin reorganization.
  3. 03 Pharmacological evaluation (2022) confirming systemic antioxidant effects via lipid peroxidation reduction.

Transparency

Commonly dusted
Min. effective
0.05%
Red flag below
0.01%

While gene expression can be influenced at very low levels, the therapeutic benefits for firming and post-procedure recovery typically require concentrations above 0.05%. It is frequently used in 'label-only' capacities in mass-market botanical blends.


The Formula

Solubility
Water
Optimal pH 4 – 7
0 7 14

Stability

Highly resilient to thermal processing (stable up to 121°C). It maintains its terpenoid and phenolic integrity best when protected from strong oxidizing agents in aqueous or emulsion systems.

Synergies

  • Retinoids
  • Vitamin C
  • Copper Peptides

Conflicts

  • Strong oxidizing agents

Safety

CIR Status
Not reviewed
Max tested
10%
Pregnancy
Safe
Sensitization risk Low

Recognized for its high safety margin with a long history of traditional use; non-toxic in pre-clinical models up to 2000 mg/kg.


Your Skin

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

Our Assessment

Valuable

An exceptional precision botanical that offers rare genetic support for elastin architecture and rapid soothing for compromised skin barriers.


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