January 2025 in “International Journal of Trichology” This study found that adding PRP to DPCP treatment for severe alopecia areata did not enhance effectiveness compared to DPCP alone.
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.
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.
March 1998 in “Journal of dermatological science” Diphencyprone initially increases mouse hair growth, then slows it, possibly due to changes in specific protein levels.
12 citations
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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.
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.
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.
June 2023 in “Journal of cosmetic dermatology” This study concluded that both DPCP alone and combined with PRP are effective and safe for treating severe alopecia areata, with no significant difference between the two treatment methods.
80 citations
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April 2017 in “Frontiers in Pharmacology” This review examines experimental and clinical evidence on PDRN, a drug derived from salmon DNA that acts via the adenosine A2A receptor and shows promise for tissue repair and treatment of diabetic foot ulcers in regenerative medicine.
3 citations
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June 2025 in “Gyemyeong uidae haksulji” This review suggests that PDRN shows promise as a safe and versatile regenerative agent for wound healing and other dermatological applications, based on its dual mechanisms and clinical evidence of efficacy.
3 citations
,
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.
1 citations
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August 2024 in “Skin Health and Disease” Among pediatric alopecia areata patients treated with DPCP, this study reported complete hair regrowth in 8.8% and any regrowth in 61.8% after one year, with better outcomes for those with milder initial symptoms and longer treatment durations.
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.
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.
10 citations
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June 2019 in “Dermatologic therapy” In this study, treatment with DPCP alone was more effective for hair regrowth and presented fewer side effects in chronic extensive alopecia areata compared to combination therapy with DPCP and anthralin.
36 citations
,
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.
27 citations
,
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.
April 2025 in “Journal of Skin and Stem Cell” This review discusses the potential of polydeoxyribonucleotide (PDRN) for various dermatological treatments and highlights its significant effects on wound healing, anti-aging, acne scars, and hair loss, but emphasizes the need for further clinical studies.
September 2024 in “Journal of the American Academy of Dermatology” Alopecia areata often recurs after treatment with diphenylcyclopropenone.
1 citations
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April 2018 in “Journal of Investigative Dermatology” This study found that Polycomb repressive complex 1 is crucial for skin development and stem cell specification, influencing gene activity beyond its known repressor functions.
This study found that PRP injections may safely improve penile curvature and PDQ scores in men with stable-phase Peyronie's Disease, although the curvature reduction observed was not enough to determine long-term clinical significance.
June 2026 in “Journal of Cosmetic Dermatology” PDRN may help with female hair loss, but more research is needed.
3 citations
,
July 2023 in “International Journal of Trichology” This study found that treatment with diphenylcyclopropenone led to more than 75% hair regrowth in 33.3% of patients with alopecia totalis or alopecia universalis, despite notable side effects.
December 2004 in “Annales d Urologie” This article examines the PCPT study on whether daily finasteride can reduce prostate cancer incidence, describing its methodology and findings but reporting 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.
January 2024 in “Annals of Dermatology” This study found that DPCP immunotherapy effectively treats alopecia areata, identifying factors that influence treatment response and patient satisfaction, which may aid in standardizing the treatment for improved outcomes.
June 2025 in “Aesthetic Cosmetology and Medicine” This article reviews the potential uses of PDRN in regenerative and aesthetic medicine, noting promising results in various treatments but highlighting the need for further long-term studies to confirm their safety and effectiveness.
January 2026 in “Andrology” This study found that PRP injections are safe and may slightly reduce penile curvature and improve PDQ scores in men with stable-phase Peyronie's Disease, but the changes are not significant enough to predict long-term effects.
18 citations
,
December 2016 in “European journal of pharmacology” In this study, 12-Chloracetyl-PPD showed anti-cancer activity by inhibiting cancer cell viability and inducing apoptosis through reactive oxygen species production without harming normal cells.
14 citations
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August 2014 in “Journal of the American Academy of Dermatology” This study found that topical diphenylcyclopropenone is an effective treatment for extensive alopecia areata, with significant hair regrowth reported in most patients, though effectiveness varied with disease characteristics.