Studies of Sebum. II. Some constituents of the unsaponifiable matter of human sebum.

EFFEC T OF AZELAIC ACID ON SEBUM EXCRETION RATE: A C OMPARATIVE STUDY BETWEEN TWO SAMPLING TECHNIQUES

In this study the influence of azelaic acid (AZA) 20% cream on the sebum excretion rate (SER) of 80 volunteers having mild to moderate acne vulgaris was demonstrated. Absorbent paper and Sebutape were used to collect the sebum and quantification was carried out by direct gravimetric method. It was shown that topical application of AZA creams could reduce the SER and number of acneic lesions...

Studies of sebum. IV. The estimation of squalene in sebum and sebum-like materials.

Sebum/Meibum Surface Film Interactions and Phase Transitional Differences

PURPOSE Sebum may contribute to the composition of the tear film lipid layer naturally or as a contaminant artifact from collection. The aims of this study were to determine: if sebum changes the rheology of meibum surface films; if the resonance near 5.2 ppm in the 1H-NMR spectra of sebum is due to squalene (SQ); and if sebum or SQ, a major component of sebum, interacts with human meibum. ME...

Composition of the ventral gland-pad sebum from the Mongolian gerbil, Meriones unguiculatus.

The chemical composition of the gland-pad sebum of gerbils of both sexes is analysed using gas-liquid chromatographical and mass spectroscopical techniques and compared with the lipids from distal skin areas. Cholesterol esters, with (omega-1)-methyl-substituted fatty acids as acidic constituents, were shown to occur in the gland-pad sebum of both sexes in high concentrations, whereas cholesta-...

Skin Care Assessment on the Basis of Skin Hydration, Melanin, Erythema and Sebum at Various Body Sites

The aim of this work was to study skin parameters like melanin, erythema, skin hydration, and sebum score of six body sites namely volar forearm, cheek, chin, forehead, neck and post auricular skin of Asian (Indian) population with different skin colour and types to depict the formulation to be used for taking care. Initially skin colour of various volunteers was assessed by the reference of co...