Science
Mechanism of Action
This extract operates via mild antibacterial and antioxidant actions, attributed to its flavonoid and coumarin content. However, its most potent mechanism involves furocoumarins, specifically psoralen and isopsoralen. These compounds become highly reactive under UV light, leading to severe phototoxic responses including DNA damage, mutagenicity, and an elevated risk of skin cancer.
Research
Clinical Evidence
Low confidenceN/A
Key findings
- 01 Traditional applications for conditions such as psoriasis and vitiligo, promoting repigmentation when combined with sun/UV exposure, have been observed with Psoralea Corylifolia Fruit Extract at 5-10% concentrations. It has also shown astringent and antibacterial actions, and supported hair regrowth in alopecia cases, though these traditional uses often leverage the ingredient's inherent phototoxicity.
Transparency
Dusting Analysis
Despite severe phototoxic and genotoxic risks, this ingredient has been historically included in various formulations for perceived benefits, likely due to its traditional use. Its mild antioxidant and antibacterial properties are significantly overshadowed by its inherent dangers.
The Formula
Formulation
Stability
The extract is highly phototoxic due to its psoralen content, meaning it becomes toxic when exposed to UV light, causing severe skin damage.
Conflicts
- UV light (sun exposure) due to drastically increased toxicity and potential for severe skin damage.
- Unpurified extracts containing furocoumarins like psoralen are inherently incompatible with safe cosmetic formulation.
Safety
Safety Profile
The European Medicines Agency (EMA) and CIR panel have expressed serious concerns regarding the genotoxic and phototoxic effects of psoralen-containing extracts. While the FDA has approved Psoralens in combination with UVA light for therapeutic use in psoriasis and vitiligo, this therapy is explicitly linked to increased risks of squamous cell carcinoma, basal cell carcinoma, and melanoma. The presence of unpurified furocoumarins like psoralen and isopsoralen renders this extract harmful to skin health, posing significant risks of severe skin damage, blistering, and hyperpigmentation upon UV exposure, in addition to long-term mutagenic and carcinogenic effects.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Given its profound phototoxic and genotoxic properties, leading to severe skin damage and increased cancer risk, Psoralea Corylifolia Seed Extract should be strictly avoided in cosmetic formulations.
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References
Sources