INTRODUCTION Extracts of the tropical fern Polypodium leucotomos appear to possess beneficial properties for the skin attributed to the presence of numerous compounds within the extract that have antioxidant and photoprotective properties. Orally administered Polypodium leucotomos may provide protection against the detrimental photoaging effects of sunlight and can also help reduce the frequenc...

superficial dermis with occasional melanophages (Figure 3). The patient continued to receive cycles of chemotherapy, with no observed increase in pigmentation, until completing the treatment after 11 infusions. Five months after the last cycle of chemotherapy and 8 months after the appearance of the hyperpigmentation, no pigmentation was seen on the palms of the hands, and the reticular pigment...

M inocycline hydrochloride is an important and effective treatment for acne vulgaris. While relatively few adverse effects have been documented, minocycline has been associated with cutaneous and mucosal hyperpigmentation in addition to hyperpigmentation of the teeth, sclera, bone, heart, and thyroid. We report a case of a woman who, while taking minocycline, developed discrete hyperpigmentatio...

BACKGROUND Diltiazem hydrochloride is a widely used calcium channel blocking agent. While a few cases of diltiazem-associated photosensitivity have been reported, no cases of photodistributed hyperpigmentation are known. OBSERVATION Four cases of photodistributed hyperpigmentation associated with the long-acting formulation of diltiazem hydrochloride (Cardizem CD) are presented. All patients ...

Cutaneous hyperpigmentation is a well-known side effect of tetracyclines, but doxycycline-induced cutaneous hyperpigmentation has only been described in one patient with a therapeutic dosage of doxycycline, and in one patient using suprapharmacological doses. We describe four patients with cutaneous hyperpigmentation in previously unaffected skin, and speculate that this was due to treatment wi...

Background: Most data on laser resurfacing have come from studies of people with Fitzpatrick skin types 1 3; however, the world’s population is comprised mostly of Fitzpatrick skin types 4 6, which are more susceptible to post-inflammatory hyperpigmentation (PIH). Objective: For the purpose of expanding the expertise of plastic surgeons treating patients with darker skin types, this study exami...