Can the stone be eaten? Silicone oil causes cancer? What kind of monsters are the talcum powder, silicon dioxide, and silicone oil that we see in nursing and health care products every day? The industry has developed so far, in fact, many raw materials are safe and contribute an important role.
Talc
Talc is the softest mineral on the earth-a white powder that is refined from talc. As a natural silicate, its main ingredient is magnesium silicate. It is smooth and tender, responds inertly to the skin (that is, it does not stimulate the skin~) and has stable performance.
In cosmetic applications, talc has the physical and chemical properties of lubrication, anti-sticking, softness, good hiding power, good gloss, and strong adsorption, which can strengthen the blocking effect of infrared rays, so that the cosmetics have protective functions.
In addition to the cosmetics field, medicaments (such as lubricants in preparations, tablet coatings and sustained-release formulations) have also been widely used.
In addition, talcum powder can also be used in the food field, such as as a release agent and anti-sticking agent in the processing and fermentation extraction process of candy (it is used as a thin coating in chewing gum and candy to prevent the candy from sticking to the outer packaging) . After several years of scientific and clinical research, the safety of talcum powder has been further affirmed.
Silicone oil
The scientific name of silicone oil is polysiloxane, which is a high molecular polymer. Silicone oil began to be used in cosmetics in 1950, and after 1970, it has been rapidly developed in cosmetics. Silicone oil-containing cosmetics have the following characteristics: good lubricating properties, a uniform waterproof protective film can be formed on the skin, no greasy and sticky feeling, and good gloss;
Good anti-ultraviolet radiation performance, will not oxidize and deteriorate under the action of ultraviolet rays to cause skin irritation; good antistatic performance and dustproof effect; good air permeability, does not affect sweat discharge after film formation; good stability and chemistry Inertness and matching performance.
In recent years, with the increasing awareness of fumed silica, it has been widely used in personal care products such as skin care products, sunscreen products, color cosmetics, antiperspirants, hair care products, shower gels, facial cleansers, etc. In particular, it better solves the problem of the suspension of solid particles in the formulation and gives the system more excellent characteristics, making it one of the essential raw materials in high-end skin care products, liquid foundations, mascaras and lip gloss products.
Specifically, in makeup and eye care, including dense powder, foundation, rouge, eye shadow, brow line and eyeliner, fumed silica is a highly effective anti-caking agent and flow agent, which can improve storage stability and powdery form Product dispersion.
In addition, silica, as a natural mineral, will also be added to many nutritional supplements, such as protein powder, capsules, etc. Its anti-caking effect is to separate each powder by wrapping the food particles to keep the food in the best free-flowing state.
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