Vegetable oils are a class of natural products very frequently used in phytocosmetology. Natural remedies with antiaging action are very popular in our days. Harmfulness of natural compounds on the skin, is quickly observed by the 24-48 hour patch test skin irritation and erythema measurement. Changes in the concentration of melanin and sebum in the dermis, represent real parameters which give ...

Acne vulgaris is a multifactorial disease of as yet incompletely elucidated etiology and pathogenesis. The following have been identified as the most significant factors: follicular hyperkeratosis, increased sebum secretion, Propionibacterium (P.) acnes, and inflammation. Increased sebum production and follicular hyperkeratosis result in the development of microcomedones, and changes in follicu...

Human sebum contains squalene, which is a polyunsaturated triterpenoid hydrocarbon (2, 7). This substance constitutes approximately 5 per cent of skin surface sebum of the adult (2). Oxygen is taken up avidly when squalene is ex posed to air, with the rapid formation of peroxides. This fact suggested that it might function as a protective agent in sebum. It has been demon strated that it is fun...

Biota orientalis L. leaf extract (BOLE) is used medically to improve strength and arrest hemorrhage. In China, BOLE has been used in traditional medicine for its antibacterial properties and for hair restoration. In this study, we investigated the mechanism of hair restoration by BOLE from the point of view of the sebum suppressant effect and hair loss prevention. BOLE at 25 or 50 μg/mL final c...

Lipid collected from the surface of the human forehead is predominantly (-95%) the product of the sebaceous glands (1) and contains on the average 41 % triglycerides, 16.5% free fatty acids, 25% wax esters, 12% squalene, 1.5% cholesterol, 2% cholesterol esters, and 2% diglycerides (2). This sebum composition shows little variation between normal subjects or over long periods of time in individu...

BACKGROUND AND AIM Green tea and lotus hold several synergistic antioxidant compounds. This investigation aimed to assess the efficacy of green tea and green tea plus lotus vs. placebo multiple emulsions in healthy adults for controlling casual sebum secretions. PARTICIPANTS AND METHODS After signing informed consents, twenty-two participants were registered in a single-blinded, placebo-contr...

The desert gerbil, M. hurrianae scent marks the general substratum in its territory with the sebum exudation of mid abdominal gland and urine. Having assessed number of functions, which scent marking plays in the social life of these rodents, the scent marking behaviour was studied in animals, in which the gland was surgically removed and was compared with that of intact rodents. After recovery...

INTRODUCTION Sweat-sebum substance released by an individual, is left on the surface of different objects by direct contact (touch), which takes place in the well known mechanism of finger-print formation. Interesting from the crime detection point of view seems to be the determination of qualitative and quantitative changes in sweat-sebum biochemical profile left on objects, which may contribu...

OBJECTIVES Most of the lipids of the skin surface come from sebaceous glands secretions, called sebum. Some of the sebum lipids are synthesized by sebaceous cells while some are reportedly derived from the plasma. Role of blood lipoproteins in sebum secretion rate and composition is unclear. To this end, excretion rate and composition of skin surface lipids of normo- and type IV hyperlipoprotei...