Psoralea Corylifolia Seed Extract
INCI: PSORALEA CORYLIFOLIA SEED EXTRACT
Reviewed by Rosie · Last updated 2 Jun 2026
A plant-derived compound with retinol-like properties, traditionally used to support skin health
Best For Skin Types
All, Mature, Combination
Addresses
Usage Frequency
Daily
What Is Psoralea Corylifolia Seed Extract?
Psoralea corylifolia seed extract is derived from the seeds of Psoralea corylifolia, a plant used in traditional Chinese medicine for centuries. The extract contains several bioactive compounds, including bakuchiol—a meroterpene phenol that has gained attention in skincare research for its structural and functional similarities to retinol.
In cosmetic formulations, this extract functions as a skin conditioning agent, working to support the skin's overall health and appearance through multiple pathways rather than a single mechanism.
How It Works
The extract's primary active compound, bakuchiol, appears to trigger similar gene expression patterns to retinol in skin cells, but through a gentler mechanism. Rather than binding directly to retinoic acid receptors like prescription retinoids, bakuchiol works through alternative pathways, which may explain its milder profile.
The extract also contains coumarins and flavonoids that contribute antioxidant and anti-inflammatory effects, helping to reduce oxidative stress within skin tissue and support the skin's natural repair processes.
Clinical Evidence & References
Gene expression studies in full-thickness skin models have shown that bakuchiol—the primary bioactive in Psoralea corylifolia—can upregulate collagen and aquaporin-3 expression similarly to retinol, suggesting potential anti-ageing benefit. However, these findings are primarily from laboratory models rather than extensive human clinical trials.
The plant itself has a long history of traditional use for skin conditions including hyperpigmentation, and phytochemical research confirms the presence of antioxidant and anti-inflammatory compounds. Evidence for specific skincare benefits in humans remains limited and would benefit from larger, controlled studies.
Published Research
How to Use
Psoralea corylifolia seed extract is typically used as part of a complete skincare routine and can generally be used daily. Because bakuchiol may have retinol-like activity, introduce it gradually if your skin is sensitive to actives, and always use SPF during the day as the extract contains psoralens, which can increase photosensitivity when applied topically.
Safety & Precautions
Frequently Asked Questions
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