Abnormalities in skin pigmentation can produce disorders such as albinism or melasma. There is a research need to discover novel compounds that safely and effectively regulate pigmentation. To identify novel modulators of pigmentation, we attempted to purify compounds from a bioactive fraction of the Korean medicinal plant Artemisia capillaris Thunberg. The novel compound isofraxidin 7-O-(6'-O-...

Demodex mites may induce inflammatory cutaneous reactions such as papulopustular rosacea and demodex folliculitis; both may lead to post inflammatory pigmentation. A 59-year-old man presented with an asymptomatic, hyperpigmented plaque on his face. Histological and clinical findings displayed Riehl-like facial pigmentation. Multiple demodex mites at the follicular infundibulum in the biopsy mat...

Background and purpose: Melasma is a common skin pigmentation disorder that manifests as hyperpigmented macules and patches. Genetic predisposition, sun exposure, and pregnancy are known risk factors for melasma. Previous studies have suggested that thyroid disorders may be associated with melasma. Given the fact that vitamin D affects and stimulates the production of melanin by melanocytes, th...

Skin pigmentation disorders refer to conditions that affect the color of skin due alterations in production or distribution melanin, pigment responsible for color. The development is a complex process involving various signaling pathways, including melanin synthesis pathway, cyclic AMP and Wnt pathway. Dysregulation these pathways can lead disorders. Phytotherapeutic approaches have been increa...

Erythema dyschromicum perstans (EDP) and Lichen planus pigmentosus (LPP) are both inflammatory disorders of pigmentation with unknown etiology difficult to differentiate clinically histologicaly. There is no consensus on whether entities separate or belong the same spectrum cutaneous disorders. We present a 13 year old boy mostly asymptomatic hyperpigmented lesions over body. The were subsequen...

Laugier-Hunziker syndrome is a rare mucocutaneous pigmentary disorder. It is considered benign, but other mucocutaneous pigmentation disorders are in the differential diagnosis and should be ruled out. This report describes a woman with pigmentation of the labial mucosa of the lower lip who was successfully treated with a Q-switched 532-nm laser.

Skin pigmentation disorders pose serious dermatological concerns and bring immense psychological burdens to individuals suffering from them. Vitiligo is one such disorder resistant various conventional treatments. It caused by an autoimmune-mediated destruction of epidermal melanocytes, resulting in focal loss skin pigmentation. The hair follicle bulge holds a stem cell (SC) population directly...

Skin color in animals is richer than human beings and is determined by different types of pigments. Melanin is the key pigment responsible for the diverse pigmentation found in animal and human skin, hair, and eyes. Melanin pigment is synthesized by melanocytes and is consecutively transferred to adjacent keratinocytes; here, it acts as an internal sunscreen to defend from ultraviolet (UV) dama...

Background: Segmental pigmentation disorder (SegPD) is a rare type of cutaneous dyspigmentation. This hereditary disorder, first described some 20 years ago, is characterized by hypo and hyperpigmented patches on the trunk, extremities and less likely on the face and neck. These lesions are considered as a type of checkerboard pattern. Case Presentation: Herein, we present a 26-year-old male...