Hypopigmentation

Carotene (provitamin A) og Topical Hypopigmentations, hyperpigmentations, radical protection Nutritient color... 

Delayed hypopigmentation is a reason why some doctors dislike the long-term results of deep peels. Hypopigmentation after phenol peels is proportional to the depth of the peel, amount of the solution used, inherent skin color, and post-peel sun-related behavior. Complete avoidance of any sun exposure years after the peel creates ivory skin color. 

Fig. 13.6. Post-peel persistent hypopigmentation following a 35% TCA peel...

Clinicians should be acutely aware that deeper peels carry substantial risks of inducing scarring and hypopigmentation in darker-skinned racial-ethnic groups (Fig. 13.6). 

With antibacterial and anti-inflammatory properties, and the ability to stabilize keratinization, azelaic acid is an effective alternative in the treatment of mild to moderate acne in patients who cannot tolerate benzoyl peroxide or topical retinoids.3,21 It also has a hypopigmentation effect that may prove effective in patients who are prone to post-inflammatory hyperpigmentation resulting from acne.22... 

Adverse effects from topical steroids are usually related to the potency of the steroid used, frequency of application, duration of therapy, and the site of application. Skin atrophy, hypopigmentation, striae, and steroid-induced acne are all possible side effects associated with long-term use.32,33... 

Tinea corporis Presents with circular, scaly patch with enlarged border Lesions may have red papules or plaque in center that clears, leaving hypopigmentation or hyperpigmentation Itching may be present Commonly referred to as ringworm of the body... 

Skin Poikiloderma Lichen planus-like features Sclerotic features Morphea-1 ike features Lichen sclerosus-like features Depigmentation Seat impairment Ichthyosis Keratosis pilaris Hypopigmentation Hypergimentation Erythema Maculopapular rash Pruritus... 

Macules are circumscribed, flat lesions of any shape or size that differ from surrounding skin because of their color. They may result from hyperpigmentation, hypopigmentation, vascular abnormalities, capillary dilatation (erythema), or purpura. 

Pigmentary abnormalities (frontal white blaze of hair, patdiy hypopigmentation of the skin, heterochromia irides)... 

Temporary hyperpigmentation or hypopigmentation has been reported with repeated application. Some individuals have a heightened susceptibility to sunlight while... 

Dryness, folliculitis, hypertrichosis, acneiform eruptions, hypopigmentation, perioral... 

Hypertrichosis, hypopigmentation, maceration of skin, miliaria, perioral dermatitis, skin atrophy, striae... 

Fine facial wrinkles, facial mottled hyperpigmentation (liver spots), hypopigmentation associated with photoaging Topical Thin film applied to affected areas once daily in... 

The mechanism of action of these compounds appears to involve inhibition of the enzyme tyrosinase, thus interfering with the biosynthesis of melanin. In addition, monobenzone may be toxic to melanocytes, resulting in permanent loss of these cells. Some percutaneous absorption of these compounds takes place, because monobenzone may cause hypopigmentation at sites distant from the area of application. Both hydroquinone and monobenzone may cause local irritation. Allergic sensitization to these compounds can occur. Prescription combinations of hydroquinone, fluocinolone... 

Effects on skin color Hypopigmentation Hyperpigmentation Striae... 

S. Kamada, A. Shimono, Y. Shinto, T. Tsujimuta, T. Takahashi, T. Noda, et al. bd-2 deficiency in mice leads to pleiotropic abnormalities accelerated lymphoid cell death in thymus and spleen, ptdycystic kidney, hair hypopigmentation, and distorted small intestine. Cancer Res, 55 (2), 354-359, 1995. 

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