Abstract
Although little reported in daily practice, the use of systemic retinoids can
cause changes in the shape, color, and texture of hair shafts. We report a case
of a patient treated with isotretinoin for acne vulgaris who experienced new
growing curly hair. Such hair changes are recognized during therapy with oral
retinoids; however, isotretinoin-induced modifications on the hair fiber
curvature are extremely rare.