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vitamin A


alcohol compound


fat-soluble vitamin


retinoic acid






beta carotene








Vitamin A Experts

The following experts are available as vitamin A consultants and vitamin A expert witnesses.  ORC experts are peer-recommended authorities who have been carefully selected and rigorously screened.
    Definition:  Vitamin A - A fat-soluble vitamin consisting of an alcohol that occurs in nature in two forms: retinol and dehydroretinol. It is present in the liver oils of cod and other fish, in butter, egg yolk, cheese, and liver, as well as in tomatoes and many other vegetables, in which it usually exists as beta carotene. It is a component of visual pigments and is necessary for normal growth and the maintenance of epithelial tissue.

Synonyms:  antiinfective vitamin, antixerophthalmic vitamin, retinol

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Expert in Free Radical Chemistry and Biology; Oxidation and Antioxidants
Expert has broad experience in the area of antioxidants for both chemical and biological/pharmaceutical applications. He has extensively investigated the mechanisms of antioxidant action, especially the mechanism of action of ... See full profile

California (CA), USA

Expert in Organic Synthesis Design
Chemical synthesis modeling; organic synthesis modeling. Expert has published 30 papers over 15 years on the theory and computerization of synthesis design. He has developed a working program, entitled ... See full profile

Massachusetts (MA), USA

Expert in Organic Process Chemistry
Expert has developed, scaled-up, and commercialized a key step in vitamin A synthesis. The step was commercialized at the Belgorod Vitamin Plant in Russia. This gave him an in-depth knowledge of fine organic synthesis. See full profile

Kent, United Kingdom

Expert in Epidemiology, Pediatrics, Infectious Diseases, HIV/AIDS, Immunology, Public Health
In her various positions at the Centers for Disease Control and Prevention, Expert has dealt with the ethical issues surrounding policy decisions involved in hemophilia-AIDS, transfusion-associated AIDS, AIDS in developing countries, AIDS ... See full profile

Oregon (OR), USA

Expert in Energy Metabolism & Regulation, Nutrition Biochemistry
Mineral metabolism. Expert has expertise in mineral absorption, metabolism, and related interactions. She is particularly interested in the non-hematological functions of iron, the role of zinc ... See full profile

North Carolina (NC), USA

Expert in Dairy, Flavor, IMAT, Ultra-Pasteurization
Expert has worked in this industry for two years in flavor compounding and development. He has continued on in this vein with his own flavor company for 40 years. He has worked at North Carolina State University teaching food science and doing ... See full profile

North Carolina (NC), USA

Expert in Personal Care, Cosmetics, Fragrances, Beauty Retailing; Marketing and Market Research
Consultant is an experienced marketing professional, keynote conference speaker, and trade publication columnist, whose energetic interactions with the health, cosmetic, and personal care marketplace have resulted in in-depth knowledge of this competitive ... See full profile

New Jersey (NJ), USA

Expert in Pharmaceutical Analytical Chemistry, Cosmetic Analytical Chemistry, Mathematics, General Science
Expert is a retired chemist with over 35 years of experience in the cosmetic and pharmaceutical industries. He evaluated and dispositioned all raw ingredients used in manufacturing cosmetics and OTC cosmetics. He developed a reduced testing program to ... See full profile

Virginia (VA), USA

Expert in Personal Care, Active Ingredient Selection for Product Development, Write Protocols for Testing
Expert has over 25 years of experience with cosmetic products. He can provide information on new ingredients and efficacy for the personal care products. He can advise on the claims, efficacy of the current ingredients in cosmetics and personal care ... See full profile

Michigan (MI), USA

Expert in Skin Care, Dermatologic Products and Cosmetics, Cosmetic Skin Surgery
As a board certified dermatologist involved in clinical care for the past 25 years, and an Associate Clinical Professor of Dermatology at Mount Sinai School of Medicine, and an author of numerous books, by-line articles, and audiotapes on skin care and ... See full profile

New York (NY), USA

Expert in FDA Regulatory Consultant for Medical Devices, Cosmetics, and OTC Drugs
Expert is a renowned authority in the cosmetic, OTC drug and medical device industries. He has had over 40 years of experience dealing with regulatory, scientific, and technical issues for FDA regulated industries. He served as Senior Vice ... See full profile

Maryland (MD), USA


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