Psoralea Corylifolia (Bakuchi) Seed Oil
Psoralea Corylifolia (Bakuchi) Seed Oil represents a fascinating intersection of traditional medicine and modern skincare science. Its primary active compound, bakuchiol, has gained significant attention for demonstrating retinol-like benefits without the typical irritation associated with retinoids [1]. This makes it particularly appealing for those with dry or sensitive skin (Types 1 and 2) who may not tolerate traditional retinol products.
The oil's impressive antioxidant properties, demonstrated through its ability to protect against mitochondrial dysfunction and reduce reactive oxygen species [2], make it valuable for anti-aging skincare routines across all skin types. However, its standout applications are in treating hyperpigmentation disorders and photoaging, where clinical studies have shown meaningful improvements in skin texture and tone [3]. Those with balanced or oily skin (Types 3 and 4) typically respond well to the ingredient, benefiting from its antimicrobial properties which can help manage excess sebum and associated concerns [4].
Those with sensitive skin, particularly Types 1 and 5, should approach with caution and perform patch testing, as some studies have reported contact dermatitis in sensitive individuals [6]. The optimal concentration for skincare products ranges from 0.5% to 1.0% [7], and results typically require consistent use over several weeks to become visible.
References
[1] Dhaliwal S, et al. "Prospective, randomized, double-blind assessment of topical bakuchiol and retinol for facial photoageing." British Journal of Dermatology. 2019;180(2):289-296. DOI: 10.1111/bjd.16918
[2] Seo E, et al. "Psoralea corylifolia L. seed extract ameliorates streptozotocin-induced diabetes in mice by inhibition of oxidative stress." Oxidative Medicine and Cellular Longevity. 2014;2014:897296. DOI: 10.1155/2014/897296
[3] Chaudhuri RK, Bojanowski K. "Bakuchiol: a retinol-like functional compound revealed by gene expression profiling and clinically proven to have anti-aging effects." International Journal of Cosmetic Science. 2014;36(3):221-230. DOI: 10.1111/ics.12117
[4] Katsura H, et al. "In vitro antimicrobial activities of bakuchiol against oral microorganisms." Antimicrobial Agents and Chemotherapy. 2001;45:3009-3013. DOI: 10.1128/AAC.45.11.3009-3013.2001
[5] Faulkner J, et al. "Babchi oil-induced phytophotodermatitis mimicking burn injury." JPRAS Open. 2021;27:23-26. DOI: 10.1016/j.jpra.2020.11.003
[6] Raison-Peyron N, Dereure O. "A new case of contact dermatitis to bakuchiol in a cosmetic cream." Contact Dermatitis. 2020;82(1):61-62. DOI: 10.1111/cod.13387
[7] Zhang X, et al. "The Chemical Constituents and Bioactivities of Psoralea corylifolia Linn.: A Review." American Journal of Chinese Medicine. 2016;44(1):35-60. DOI: 10.1142/S0192415X16500038
