天然皮脂 Natural sebum
“Squalane” - most of you are familiar with - is one of the major ingredients in our latest Osmanthus Hydrating Mist. But do you know how does it protect our skin? Let’s have a skin structure lesson today 😂
First of all, on top of the stratum corneum, there is a thin protective lipid film to help our skin locking the moisture and resisting bacteria. This natural skin barrier is comprised mainly of sebum, of which 12-13% are squalene.
Squalene is an excellent emollient and is water resistant. However, sebum secretion will gradually decrease as we age. The daily exposure to UV light and harsh weather, as well as the over-cleaning habit reduce the thickness of this protective lipid film. Skin could suffer more from the TEWL become more sensitive to external stimuli. Therefore, replenishing squalene will help to increase the moisture of skin.
But you will ask, is there a spelling mistake? Why do you use squalane not squalene? In fact, squalene is very unstable as it oxidizes easily when it encounters air. On the other hand, squalane is the hydrogenated version of squalene, which is more stable. It is colorless, odorless, and has a light texture. Adding it to our daily skin care can reduce the TEWL. It also has a soothing and anti-inflammatory effect.
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