Measurement and evaluation method of sebum-From a view point of makeup deterioration

摘要

Sebum secretion from sebaceous glands plays an important role in protection of skin because of its wettability, lubricity and film-formation. Therefore, decrease of secretion amount of sebum causes an chapped-skin and a fissure. On the other hand, it is reported that excessive secretion of sebum stimulated a stickly feeling on skin, a formation of comedo and a negative effect of skin by peroxylipids. Furthermore, make-up film deterioration by sebum must be considered as influence on make-up products. Almost all cosmetic users do NOT satisfy to "long-lasting" effect of currently available make-ups, therefore, the relationship between make-up film deterioration and secretion sebum is extremely use for formulation of cosmetics. In this report, measuring methods of secretion sebum is shown at former part, and then, countermeasure methods against sebum as cosmetic ingredient is introduced at latter one.