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Intensive Brightening Treatment. Another one of Dr. Luke’s favorite retinol serums, this formula from PCA Skin is formulated with 0.5% retinol in addition to a patented Omnisome technology that ...
Alitretinoin is a form of vitamin A. Alitretinoin has been administered in oncological clinical studies at dosages of more than 10-times of the therapeutic dosage given for chronic hand eczema. The adverse effects observed were consistent with retinoid toxicity, and included severe headache, diarrhoea, facial flushing and hypertriglyceridemia ...
Acitretin is a metabolite of etretinate, which was used prior to the introduction of acitretin. Etretinate was discontinued because it had a narrow therapeutic index as well as a long elimination half-life (t 1/2 = 120 days), making dosing difficult. In contrast, acitretin's half-life is approximately 2 days.
Features of photoaging include fine and coarse wrinkles, changes in skin pigmentation, and loss of elasticity. In human skin, topical retinoids increase collagen production, induce epidermal hyperplasia, and decrease keratinocyte and melanocyte atypia. Topical tretinoin is the most extensively investigated retinoid therapy for photoaging. [23]
Etretinate has been replaced by acitretin, the free acid (without the ethyl ester). While acitretin is less lipophilic and has a half-life of only 50 hours, it is partly metabolized to etretinate in the body, [ 2 ] so that it is still a long-acting teratogen and pregnancy is prohibited for two years after therapy.
The patch, in theory, would cover and repair heart tissue damaged by heart attacks that's just as strong and active as real tissue. Scientists create patch to repair damage caused by heart attacks ...