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Retinol, also called vitamin A 1, is a fat-soluble vitamin in the vitamin A family that is found in food and used as a dietary supplement. [3] Retinol or other forms of vitamin A are needed for vision, cellular development, maintenance of skin and mucous membranes , immune function and reproductive development. [ 3 ]
A plasma concentration of about 2.0 μmol/L is normal; less than 0.70 μmol/L (equivalent to 20 μg/dL) indicates moderate vitamin A deficiency, and less than 0.35 μmol/L (10 μg/dL) indicates severe vitamin A deficiency. Breast milk retinol of less than 8 μg/gram milk fat is considered insufficient. [6]
Retinyl esters can be distinguished from retinol in serum and other tissues and quantified with the use of methods such as high-performance liquid chromatography. [ 21 ] Elevated amounts of retinyl ester (i.e., >10% of total circulating vitamin A) in the fasting state have been used as markers for chronic hypervitaminosis A in humans and ...
️ Check the retinol concentration. Dr. Mathieu recommends using an eye cream with less than 0.5% retinol to start because the eye area is so delicate and retinol can be irritating for some.
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We're the first to admit the difference between retinol, retinoids, and retinal can be confusing. That's why we tapped dermatologists Dr. Whitney Bowe and Dr. Michelle Henry to explain. Plus, they ...
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