66 citations
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January 1987 in “Journal of Investigative Dermatology” This study found that enzyme activity critical to cancer induction by polycyclic aromatic hydrocarbons in human hair follicles increased after using a crude coal tar-containing shampoo for four days and was substantially inhibited by imidazole compounds.
16 citations
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January 2000 in “Journal of dermatological treatment” This study found that calcipotriol scalp solution was more effective than a coal tar-based shampoo for treating mild to moderate scalp psoriasis and showed continued efficacy with long-term use.
13 citations
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June 2011 in “International Journal of Dermatology” This study found that a new lecithinized coal tar formulation did not stain different types of mammalian hair, suggesting it may be promising for treating scalp psoriasis without the drawback of staining.
143 citations
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September 1991 in “Archives of Dermatology” In this study, patients with generalized pustular psoriasis were classified into subgroups to better understand the disease's variability and assist in treatment selection, highlighting the role of localized infections in triggering flares.
128 citations
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January 2001 in “American Journal of Clinical Dermatology” This review provides an overview of scalp psoriasis treatments but presents no new clinical results; it highlights various options including coal tar, salicylic acid, corticosteroids, and vitamin D3 analogues.