Vitamins are organic chemical compounds of low molecular weighs that are classified as
either water-soluble (hydrophilic) or fat-soluble (lipophilic). Vitamins B, F, and H belong to …

A rapid HPLC method was developed for the assay of tocopheryl acetate and ascorbyl
tetraisopalmitate in cosmetic formulations. The validated method was applied for quantitative …

Different forms of tocopherols, together with tocotrienols, are collectively named as vitamin E
(a lipid-soluble vitamin with antioxidation effect in several stages of peroxidation of lipids in …

The aim of this review is to discuss and compare the current trends in liquid–liquid and solid–
liquid extraction procedures applied to the analysis of cosmetics. Although classical sample …

Ascorbic acid (AA), also known as vitamin C, is a very popular skin‐whitening agent used in
cosmetics. However, the use of AA (and also its sodium or magnesium salts) in cosmetic …

The widespread applications of cosmetics in modern life make their analysis particularly
important from a safety point of view. There is a wide variety of restricted ingredients and …

Vitamin A (retinol) and some of its derivatives are a group of fat-soluble compounds used in
cosmetic products as bioactive ingredients. Therefore, it is necessary to perform the quality …

Vitamins A and E and coenzyme Q10 are common ingredients in anti-ageing cosmetic
products. Within this study, we evaluated the quality of commercial cosmetics with vitamin A …

Capillary liquid chromatography (LC) is used for the determination of tocopherols and
tocotrienols in cosmetic products. Dispersive liquid–liquid microextraction (DLLME) allows …

A specific HPLC method, with an RP-C-18 column and a UV detector, for simultaneous
determination of vitamin E (tochopherol, T)/T acetate (TA) in four commercial and two …