Let's see what these ingredients are for!
Also known as "hydroxy acid", it is the main component of acid rain;
Excessive intake may lead to various discomforts;
Long-term contact between skin and its solid form will cause serious tissue damage;
In the gas state, it can cause serious burns;
This substance has been found in the tumors of incurable cancer patients;
People who are addicted to this substance will die if they leave 168 hours.
Widely used in skin care products and cosmetics, it is an excellent skin softener. Stable properties, not easy to oxidize or produce odor. It can make skin soft and smooth, has no greasy feeling and good permeability, and can be used as a good solvent for pigments in lipstick and mascara. Commonly used in skin cream, foundation cream, hair oil, eye shadow, lipstick, mascara and other formulations. Refreshing, easy to push away, without the sticky feeling of ordinary vegetable oil, because the molecules are small, it is easy to penetrate into pores to clean grease and dirt, which is very good as makeup remover.
But at the same time, it will also enter keratinocytes, and excessive use will make the skin keratinized and become rough and sallow.
Ethylhexyl methoxycinnamate is a good absorbent in ultraviolet UVB region, which can effectively block 280-3 10nm ultraviolet rays with high absorption rate. Non-irritating to the skin, safe and almost an ideal sunscreen. Basically all sunscreens contain this ingredient.
It does produce estrogen-like effects in animal experiments, but there are dose requirements. According to the laws and regulations of various countries, the highest content of ethylhexyl methoxycinnamate in skin care products should not exceed 10%, and the content in the United States and Canada should not exceed 7.5%.
201On July 3rd, 8, Hawaii promulgated the bill SB 257 1 (now bill 104), which prohibited the sale and distribution of sunscreen products containing benzophenone -3 (hydroxybenzophenone) or octyl ester in Hawaii. Facial cosmetics containing these two substances are not prohibited by the bill. The ban will take effect on 20211.
Wetting agent Generally speaking, this ingredient is very safe and is often used as a solvent.
Dioctyl carbonate is very dry, and its dryness is almost equal to that of volatile silicone oil. Moreover, it is often used as a solvent in foundation or sunscreen products because of its strong dissolution and dispersion ability to various insoluble sunscreen agents, such as Avobenzone, titanium dioxide and zinc oxide, and easy emulsification.
Because of its refreshing characteristics, many skin care products use this ingredient ~ But if a large amount of dioctyl carbonate is used as the main oil phase, the moisturizing effect of this skin care product will generally not be too good, so it is not a good choice for particularly dry and dehydrated skin, especially for light-cooked muscles over 25 years old. Must be used and matched with skin-friendly water and/or cream with good moisture retention.
Causes pore blockage, acne and acne.
White pigment, said to be the whitest thing in the world, is the main physical sunscreen and is often used as a food whitening agent.
Produce free radicals, or permeate the skin to produce hormone components, which are harmful to the body, and free radicals will lead to skin aging.
Cause acne.
In cosmetics, polydimethylsiloxane is required to have low viscosity, good volatility and easy cleaning, and the highest usage ratio can reach more than 15%. The expert group of cosmetic composition review concluded that dimethylsiloxane and its related derivatives were "used for formulating safe cosmetics".
No irritation to skin and mucosa, but some irritation to eyes. Generally speaking, it is safe. The relevant departments in various countries, led by FDA, have approved the use of polydimethylsiloxane in cosmetics, while CIR (Cosmetic Important Review) in the United States has acknowledged its potential health risks.
This product has good solubility and toner dispersion ability, and the skin feels fresh, which is especially suitable for sunscreen products. Oil-soluble sunscreen pigment, poly-C siloxane and other ingredients are easily soluble in this product. It was rated as "ideal sunscreen vehicle" by FDA. This product is easy to emulsify, and can be widely used in various creams, sunscreens and lotions, and can also be used in hair care shampoos. It plays a synergistic role with cationic surfactants to enhance conditioning and make dry hair oily but not greasy. In the formula with more liquid paraffin and vaseline, a small amount of ester can obviously overcome the greasy feeling.
A surfactant, mainly for decontamination, low irritation and smooth skin. Glyceryl stearate is neutralized as an emulsifying component in Dabao.
This sunscreen has a high risk factor and is not allowed to be used by FDA. The European Union also believes that this sunscreen is toxic to the thyroid gland and will interfere with human hormones. This sunscreen is not recommended.
The light stability is not very good, and it will degrade after being irradiated by light and lose its ability to absorb ultraviolet rays.
The light-colored clothes killer will dye your white shirt yellow.
Xanthan gum solution has the characteristics of low concentration and high viscosity (the viscosity of 1% aqueous solution is equivalent to 100 times that of gelatin), and it is an efficient thickener. Xanthan gum has been widely accepted by food industry because it can provide excellent processing and storage stability at low concentration. According to the hygienic standard of food additives in China, xanthan gum can be used in bread, ice cream, dairy products, meat products, jams, jellies and drinks.
Myrrha alcohol has anti-inflammatory, antibacterial, antiviral, ulcer healing and other functions, and is widely used in the pharmaceutical industry.
In addition, bisabolol is light and pleasant, and it is also a stable fixative, so bisabolol is also widely used in spices, essences and cosmetics.
Preservatives, carcinogenic? Carcinogenic?
Preservatives in cosmetics are mainly used to inhibit the reproduction of microorganisms. The principle of action is to slowly release formaldehyde, which has bacteriostatic effect on gram-positive bacteria and gram-negative bacteria, including Pseudomonas, and selectively inhibits yeast and mold. Branched low molecular weight esters can improve the coating property of products, have a smooth after-effect feeling, and can greatly reduce the heavy greasy feeling and stickiness of products caused by adding ultraviolet absorbers and pigments. It doesn't matter if it is too much. If it is sensitive skin, it is best to avoid using it.
Butyl hydroxytoluene (BHT) (dibutyl hydroxytoluene) is actually an antioxidant and preservative, which can resist the oxidation of oil. Excessive use can cause dermatitis and allergies (most inferior lipsticks will add some).
EDTA is a chelating agent, which can form stable soluble compounds with metal ions in water and has a very strong effect on removing heavy metal ions. Can effectively protect human body from heavy metal ions. It is also an antidote to heavy metal ion poisoning. In a heavily polluted area like China. Taking and contacting some EDTA is very beneficial.
The so-called essence of animals and plants means that animals and plants absorb the essence of heaven and earth and become spiritual, so they become essence, so they have elves.
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