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Postinflammatory hyperpigmentation (PIH) is a skin condition characterized by the darkening of the skin (hyperpigmentation) following an inflammatory injury, such as acne, dermatitis, infectious disease, or trauma. Less frequently, it may occur as a complication of a medical procedure performed on the skin. It is a common cause of skin ...
Postinflammatory hyperpigmentation is prevalent in minor burns, but postinflammatory hypopigmentation can occur in severe burns. [6] In addition, postinflammatory hypopigmentation is another potential side effect of chemical peels. In the past, porcelain-white (alabaster) skin was thought to benefit from the use of Baker phenol peel. [2]
This is the mildest of the peel formulas and produces light peels for treatment of fine wrinkles, areas of dryness, uneven pigmentation and acne. Alpha hydroxy acids can also be mixed with facial washes, serums or creams in lesser concentrations as part of a daily skin-care regimen to improve the skin's texture.
What are the side effects of phenol peels? “While we know the end result of a safe phenol peel procedure will have excellent results, the potential risks and complications have to be carefully ...
Formulations of trichloroacetic acid concentrated to 50% or more are considered to be deep chemical peels. [33] Medium-strength and deep-strength chemical peels are more effective for deeper atrophic scars but are more likely to cause side effects such as skin pigmentation changes, infection, and small white superficial cysts known as milia. [33]
Hyperpigmentation can be diffuse or focal, affecting such areas as the face and the back of the hands. Melanin is produced by melanocytes at the lower layer of the epidermis . Melanin is a class of pigment responsible for producing color in the body in places such as the eyes, skin, and hair.
Keratinocytes contribute to skin pigmentation by holding the melanin originating in melanocytes and inducing melanogenesis through chemical signals directed at melanocytes. [ notes 2 ] The transfer of melanosomes to keratinocytes is a necessary condition for the visible pigmentation of the skin. [ 55 ]
Unusual conditions that can be associated with a lichenoid inflammatory cell infiltrate are HIV dermatitis, syphilis, mycosis fungoides, urticaria pigmentosa, and post-inflammatory hyperpigmentation. [2] In cases of post-inflammatory hyperpigmentation, it is important to exclude potentially harmful mimics such as a regressed melanocytic lesion ...