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A novel LCD (coal tar) solution for psoriasis does not discolor naturally light or color‐processed hair in an exaggerated exposure test model
Author(s) -
Johnson Colleen,
Edison Brenda,
Brouda Irina,
Green Barbara
Publication year - 2009
Publication title -
journal of cosmetic dermatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.626
H-Index - 44
eISSN - 1473-2165
pISSN - 1473-2130
DOI - 10.1111/j.1473-2165.2009.00453.x
Subject(s) - liquid crystal display , scalp , coal tar , dermatology , psoriasis , chemistry , hair dyes , materials science , medicine , coal , optoelectronics , organic chemistry , dyeing
Summary Background Scalp psoriasis is reported to occur in 50–80% of psoriasis sufferers. Treatment of scalp psoriasis requires special consideration of product esthetics and staining potential due to the presence of hair. Aim To evaluate the potential of a new, marketed liquor carbonis distillate (LCD; coal tar) solution to discolor naturally light or color‐processed hair under exaggerated exposure conditions. Methods Samples of naturally light and color‐processed hair from a single donor were exposed to LCD solution repeatedly over 14 days and via submergence for 24 h. Color of LCD‐treated hair samples was compared with untreated control hair samples. Results LCD solution did not discolor naturally light or color‐processed hair following repeated exposures and 24 h submergence. Conclusion The marketed LCD solution does not appear to discolor naturally light or color‐processed hair.