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In the fascinating world of beauty and skincare, there is a magical ingredient quietly playing a significant role. It is low - viscosity silicone oil, scientifically known as low - oligomerization degree dimethyl siloxane.
Low - viscosity silicone oil appears as a colorless, transparent, and thin liquid. Its transparent and pure appearance is like an "invisible gem" in the beauty realm. It is odorless and non - sticky, causing no burden to the skin. The light touch makes it almost imperceptible. With good air permeability, it allows the skin to breathe freely, preventing any discomfort caused by stuffiness during use. It also has high compatibility, getting along well with various ingredients without causing conflicts or adverse reactions. In terms of spreadability and smearability, it excels. A simple swipe can evenly cover the skin surface, laying a solid foundation for subsequent skincare or makeup steps. Moreover, it is volatile, not lingering on the skin for too long but playing a crucial role during use. As an active substance carrier, it precisely delivers various effective ingredients to where the skin needs them, providing a soft, velvety conditioning effect and making the skin feel extremely smooth. Its water - resistant performance is also excellent, protecting the skin from external moisture to a certain extent.
From a physical perspective, at 25℃, the viscosity of low - viscosity silicone oil ranges from 0.65 to 20 cst. This moderate viscosity gives it both good fluidity and the ability to maintain a certain form. Its relative density is between 0.90 and 0.95, and the refractive index is 1.3960. These parameters determine its characteristics in optics and physics. The flash point (open - cup method) reaches 150℃, indicating a high level of safety. It is less likely to catch fire during normal use and storage.
Low - viscosity silicone oil has a broad range of applications. In skincare products, it can improve the texture of the products, making them more easily absorbed by the skin. The recommended addition amount is 1 - 10%. In hair - care products, it can repair damaged hair, making it softer, shinier, and more manageable. The suggested addition is also 1 - 10%. In color cosmetics, its role is even more significant. It can reduce the stickiness of the formula, making the products easier to apply and spread. The recommended addition amount is 1 - 30%. Whether it is foundation, eyeshadow, or lipstick, low - viscosity silicone oil can add a unique charm.