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Preformed vitamin A is fat-soluble and high levels have been reported to affect metabolism of the other fat-soluble vitamins D, [24] E, and K. The toxic effects of preformed vitamin A might be related to altered vitamin D metabolism, concurrent ingestion of substantial amounts of vitamin D, or binding of vitamin A to receptor heterodimers ...
Topical tretinoin is also the most extensively investigated retinoid therapy for photoaging. [12] Common side effects when used as a cream are limited to the skin and include skin redness, peeling, and sun sensitivity. [10]
Isotretinoin, also known as 13-cis-retinoic acid and sold under the brand name Accutane among others, is a medication used to treat skin diseases like harlequin-type ichthyosis, and lamellar ichthyosis, and severe cystic acne or moderate acne that is unresponsive to antibiotics. [6]
Retinoids — a form of vitamin A that dries out the skin, helps unclog pores, and reduces the amount of dead skin cells — are a commonly prescribed one. Topical prescription retinoids include:
Retinoids are a class of chemicals derived from vitamin A. Topical retinoids also have potent anti-inflammatory effects (which help improve acne) and reduce hyperpigmentation by stimulating cell ...
Isotretinoin is a retinoid, and the highest-strength one you can take (compared with a topical retinol or retinoid). It’s a vitamin A derivative that shrinks sebaceous glands—i.e., the glands ...
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 ...
Vitamin A status involves eye health via two separate functions. Retinal is an essential factor in rod cells and cone cells in the retina responding to light exposure by sending nerve signals to the brain. An early sign of vitamin A deficiency is night blindness. [6] Vitamin A in the form of retinoic acid is essential to normal epithelial cell ...
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