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CAMELLIA JAPONICA LEAF EXTRACT.

Valuable CAS 223748-13-8 / SKIN CONDITIONING

A sophisticated botanical antioxidant derived from the Japanese Red Camellia, renowned for its resilience in cold climates. This extract serves as a multi-functional cellular guardian, bridging the gap between traditional herbal wisdom and modern mitochondrial science to preserve skin density and barrier integrity.

antioxidant collagen-booster soothing agent skin conditioning barrier reinforcement

Science

It operates through a four-pronged approach: activating the FUNDC1-mediated mitophagy pathway to clear damaged mitochondria and reverse senescence; inhibiting MMP-2 and elastase enzymes to protect the structural matrix; upregulating Claudin-1 to seal the epidermal barrier; and neutralising oxidative stress via a rich profile of polyphenols and flavonoids.


Research

High confidence
Effective range 0.1–1%
Optimal

1%

Key findings

  1. 01 Demonstrated significant SOD-like radical scavenging and promotion of Type I collagen synthesis in human skin cells at 1.0% concentration.
  2. 02 Shown to protect the stratum corneum from UVB-induced carbonylation, with green leaf extracts outperforming mature leaf variants in antioxidant capacity.
  3. 03 In vitro fibroblast testing (15-60 μg/L) confirmed enhanced DNA repair and anti-aging effects through mitochondrial rejuvenation.

Transparency

Commonly dusted
Min. effective
0.1%
Red flag below
0.05%

Due to its premium positioning, it is frequently included at 'claim' levels below 0.1%. For meaningful biological impact on collagen synthesis and DNA repair, concentrations between 0.5% and 1.0% are clinically required.


The Formula

Solubility
Water
Optimal pH 4 – 6
0 7 14

Stability

The bioactive polyphenols are thermo-labile; the extract should be incorporated during the cooling phase at temperatures below 40°C to maintain potency.

Synergies

  • Vitamin C
  • Hyaluronic Acid
  • Niacinamide

Conflicts

  • Strong oxidizing agents
  • High alkaline conditions (pH > 8.0)

Safety

CIR Status
Not reviewed as standalone (comparable to C. Sinensis)
Max tested
1%
Pregnancy
Safe
Sensitization risk Low

Extensive testing including HRIPT and primary irritation trials at 1.0% confirm an excellent safety profile for topical use.


Your Skin

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

Our Assessment

Valuable

An exceptional precision botanical for anti-aging and barrier defense, provided it is formulated at active concentrations rather than marketing levels.


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References