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PLEUROCHRYSIS CARTERAE EXTRACT.

Insufficient Data / HUMECTANT, SKIN CONDITIONING

Pleurochrysis Carterae Extract, derived from a haptophyte, shows significant promise in addressing hyperpigmentation. Its action is centered on effectively reducing melanin synthesis, contributing to a brighter and more uniform skin tone.

Skin Brightening Anti-Hyperpigmentation

Science

This extract actively intervenes in the melanogenesis pathway to achieve its skin brightening effect. It functions by down-regulating the mRNA expression of microphthalmia-associated transcription factor (MITF) and directly inhibiting tyrosinase activity, both critical steps in the melanin production cascade.


Research

Medium confidence
Effective range 0.08–0.16%
Optimal

0.026%

Key findings

  1. 01 Demonstrated approximately a 77% decrease in α-MSH-enhanced melanin synthesis in B16F1 murine melanoma cells. The IC50 for this effect was determined to be 0.026%.
  2. 02 Achieved approximately an 84% decrease in α-MSH-enhanced melanin synthesis in B16F1 murine melanoma cells. Importantly, no proliferation arrest was observed in these cells, indicating a targeted anti-melanogenic effect without general cellular toxicity.

Transparency

Not commonly dusted

The Formula

Solubility
Water
Optimal pH N/A
0 7 14

Safety

CIR Status
Insufficient data
Sensitization risk Unknown

The Cosmetic Ingredient Review (CIR) Panel, while assessing algae-derived ingredients including Pleurochrysis Carterae Extract, concluded that there was insufficient data to determine the safety of many such compounds. A specific 'safe as used' or 'safe with restrictions' status for this extract has not been established.


Your Skin

No Normal
No Dry
No Oily
No Sensitive
Irritancy Unknown
Comedogenicity Unknown

Our Assessment

Insufficient Data

While *in vitro* studies indicate significant potential for anti-hyperpigmentation, comprehensive safety and human efficacy data are currently insufficient for a definitive rating.


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