the brief exposure in a “wash off “ product in an area with less
density of sebaceous follicles and lipid than found on the face
may not be sufficient for solubilization of BP particles in suspension
in the wash formulation. Further studies with varying
periods of time between application and rinsing would help
clarify whether this hypothesis has merit. Likewise, it would
be of interest to see how effective a “leave on” formulation is
when used at home without supervision.
BP (5.3%) emollient foam effectively reduced P. acnes populations
on the back and may offer a useful therapy for patients
with acne on broad body surface areas. BP (8%) wash applied
at home in the shower did not effectively reduce P. acnes populations
on the back. Both treatments were well tolerated
The author thanks Brian Bulley MSc for editorial assistance.
The authors have no relevant conflicts of interest to disclose.
The manufacturer of the foam product sponsored this study.
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Address for Correspondence
James J. Leyden, MD505 ParkwayBroomall, PA firstname.lastname@example.org