Silicone oil Does silicone oil cause cancer?What kind of demons can we see in care products, silica, silicone oil?Since the development of industry, in fact, many raw materials are safe and make an important contribution to safety.
Silicone oil is known as polysiloxane, which belongs to polymers.Silicone oil started to be used in cosmetics in 1950 and grew rapidly in cosmetics after 1970.Silicone oil containing cosmetics have the following characteristics: good lubrication, can form a uniform waterproof protective film on the skin, no greasy and sticky feeling, good luster;Good anti-ultraviolet performance, under the action of ultraviolet light will not cause oxidative deterioration and skin irritation;Antistatic and dustproof effect is good;Good air permeability, does not affect the discharge of sweat after film formation;Good stability, chemical inertia and matching performance.
Silicone oil has been playing an ambiguous role, and people's misunderstanding of silicone oil mainly comes from some advertisements.However, Xinjia is responsible for telling everyone that there is no evidence that silicone oil is teratogenic and carcinogenic, and that silicone oil cannot "plug holes" as some speculate.For people with dry hair, silicone oil can adhere to the pores of the hair scales, giving the hair a smooth and smooth surface, which is good news and away from disaster.Do you think silicone oil is so good that you don't like products that claim to be silicone oil-free?
silica
Many people think of stone when they think of silica. How can you use stone in makeup?In fact, in cosmetics, we often come into contact with small particle size, particle size distribution of the gas phase silica, has a high activity and a wide range of application prospects.In recent years, with the increasing understanding of gaseous silica, it has been widely used in skin care products, sunscreens, cosmetics, antiperspirants, hair products, bath lotions, face cleansers and other personal care products.In particular, it solves the suspension problem of solid particles in the formula, endows the system with more excellent characteristics, making it one of the essential raw materials for high-grade skin care products, liquid bases, mascara, and lip gloss.
Specifically, in the field of cosmetics and eye care, including dense powder, foundation, rouge, eyeshadow, eyebrow and eyeliner, gaseous silica is a highly effective anti-stick and dispersing agent, which can improve the storage stability and dispersion of powdered products.Among emulsions, silica is particularly useful for increasing the viscosity of emulsions, improving the water resistance of creams and emulsions, and reducing the amount of surfactant used.In sunscreen products, silica can improve storage stability, especially to improve the water resistance of the formulation, in addition, the distribution of sunscreen substances in the formulation can be more even, thus improving the sun protection index.
In addition, silica, as a natural mineral, will also be added to many nutritional supplements, such as protein powders, capsules, etc.Its anti-caking effect is to coat the food particles and keep the food in the best free-flowing state, thus achieving the purpose of separating the powder.At the same time, the silica wrapped in the food particles can effectively absorb the surrounding moist air and prevent the food from caking during storage.There must be fairies who ask: Is silica in food harmful to humans?In fact, silica is an officially approved food additive (" GB2760/2014 Standard for the Use of Food Additives ").When used as an anticoagulant, silica is used in small amounts, so there is no need to worry about side effects.
