9 citations
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November 2012 in “Biomolecules & therapeutics” This study found that diphlorethohydroxycarmalol significantly increased prostaglandin $E_2$ synthesis in HaCaT human keratinocytes by upregulating COX-1 and COX-2 expression, suggesting potential benefits from elevated $PGE_2$ production.
1 citations
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February 2025 in “Toxicology in Vitro” In this study, DPHC from the brown alga Ishige okamurae demonstrated potential to prevent androgenic alopecia by inhibiting hair loss and promoting hair growth through multiple cellular mechanisms.
March 2005 in “Journal of The American Academy of Dermatology” Diphencyprone treatment protocols could be simplified as no harm occurred despite not fully following them.
27 citations
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December 2015 in “Clinical and Experimental Dermatology” This study found that hair regrowth occurred in 72.2% of alopecia areata patients treated with diphencyprone, with disease extent at baseline and duration affecting outcomes.
March 1998 in “Journal of dermatological science” Diphencyprone initially increases mouse hair growth, then slows it, possibly due to changes in specific protein levels.
37 citations
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September 2009 in “JEADV. Journal of the European Academy of Dermatology and Venereology/Journal of the European Academy of Dermatology and Venereology” This study found that diphencyprone is an effective and safe treatment for extensive alopecia areata, especially with long-term therapy and maintenance to reduce relapse risk.
10 citations
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August 2024 in “Clinical Cosmetic and Investigational Dermatology” This review reports that natural compounds show promise in slowing skin photoaging by targeting cellular pathways in keratinocytes and fibroblasts. However, comprehensive clinical studies are needed to verify their efficacy and safety.
8 citations
,
September 2004 in “Contact dermatitis” Avoiding dyed wigs and clothing improved severe allergic reactions in a woman treated with diphencyprone.
117 citations
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November 2006 in “Experimental Dermatology” This review explores the biology of wool follicles and suggests their potential use as research models in modern biology, but it reports no new findings.
27 citations
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May 2007 in “Archives of dermatological research” In this study, alopecia areata patients treated with diphencyprone showed a significant increase in CD8 lymphocytes around hair bulbs, which may be associated with hair regrowth.
22 citations
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March 1999 in “International Journal of Clinical Practice” This review discusses the use of topical immunotherapy for severe alopecia areata and resistant viral warts, highlighting diphencyprone's advantages and the need for careful handling to avoid staff sensitisation; it reports no new clinical results.
3 citations
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November 2021 in “Skin Appendage Disorders” This study found that home-use diphenylcyclopropenone (H-DPCP) is a cost-effective alternative to office-use for severe alopecia areata, showing similar effectiveness with reduced costs.
13 citations
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January 2010 in “Immunopharmacology and immunotoxicology” This study found that increased Bcl-2 protein expression after DPCP treatment was associated with hair regrowth in alopecia areata patients, suggesting its role in inhibiting apoptosis.
10 citations
,
January 2012 in “Case reports in medicine” This report describes two cases where patients developed vitiligo as a side effect of diphencyprone treatment for alopecia areata, highlighting the need to inform patients about this potential adverse effect.
12 citations
,
November 2003 in “Journal of the American Academy of Dermatology” This study found hair regrowth in the majority of AA-affected mice and rats treated with diphencyprone, suggesting its potential utility for understanding human alopecia areata and the drug's therapeutic action.
3 citations
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April 2024 in “JAAD Case Reports” This article reviews DPCP's use as a topical immunotherapy for alopecia areata and discusses its suggested mechanism, but reports no clinical results.
3 citations
,
September 2024 in “Journal of Microbiology and Biotechnology” This study found that human placenta hydrolysate effectively inhibited atopic dermatitis development in stimulated human cells and a mouse model, suggesting its potential as a therapeutic agent for related skin diseases.
May 2024 in “Journal of the Egyptian Womenʼs Dermatologic Society” This study suggests that DPCP treatment can be effective and safe for severe alopecia areata in children, with maintenance therapy potentially reducing relapse rates.
December 2025 in “Molecules” This study found that the 15-PGDH inhibitor DPP improved endothelial function in hair-related cells exposed to DHT by reducing oxidative stress and enhancing angiogenic capacity.
18 citations
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January 2010 in “Dermatology Research and Practice” This case report describes a 30-year-old Brazilian male who developed vitiligo lesions following diphencyprone therapy for alopecia areata.
July 2024 in “International Journal of Molecular Sciences” This study explored the effects of DPP, a 15-PGDH inhibitor, on human follicle dermal papilla cells damaged by dihydrotestosterone and observed that DPP enhanced wound healing, reduced reactive oxygen species, and increased hair growth in ex vivo human hair follicle cultures.
1 citations
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August 2024 in “Journal of Pharmacy & Pharmaceutical Sciences” This study found that forming inclusion complexes of DPCP with HPβCD using the 3D ground mixture method enhances its anti-inflammatory activity at lower doses compared to complexes with β-CD.
36 citations
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May 2005 in “BMC dermatology” This study found that topical diphenylcyclopropenone was effective in treating severe alopecia areata but had a high relapse rate and was often accompanied by side effects like eczema and lymphadenopathy.
October 2017 in “Our Dermatology Online” This study reports that while DCP had similar treatment efficacy in propylene glycol and isopropanol for alopecia areata, the formulation in isopropanol was better tolerated.
16 citations
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April 2000 in “Contact dermatitis” In this report, a 19-year-old Japanese man experienced severe and prolonged urticarial reactions following treatment with diphenylcyclopropenone for alopecia universalis, emphasizing the need for caution with potent sensitizers.
July 2021 in “Clinical case reports and studies” In this case report, a 9-year-old boy with diffuse alopecia areata showed improvement with topical diphencyprone immunotherapy, suggesting it as a safe and effective treatment option in pediatric cases of alopecia areata resistant to other therapies.
2 citations
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January 2016 in “Scientifica” Researchers created a reliable method to measure dexpanthenol and resorcinol in hair products.
10 citations
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January 2018 in “Postępy Dermatologii i Alergologii” This study found that 21 out of 39 patients with alopecia areata experienced more than 50% hair regrowth after six months of DPCP treatment, with better outcomes observed in those treated at 3-week intervals compared to weekly intervals.
17 citations
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October 2011 in “International Journal of Immunopathology and Pharmacology” This study found that after 24 weeks of DPCP treatment for alopecia areata, there was a significant increase in new capillaries and hair regrowth detectable by videocapillaroscopy.
14 citations
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May 2019 in “Chemosphere” This study found that while DP concentrations in dust were higher in male dormitories, DP in hair was higher in females, suggesting differing metabolism between genders and that hair DP mainly originates internally.