1. Is it necessary to use preservatives?
First of all, the main role of using preservatives in cosmetics is to prevent the growth of microorganisms in the product, to maintain the stability of the skin care products, and to prevent deterioration after use. The more water-based skin care products need more preservatives, such as lotions and lotions, and the closer to ointment or wax, the more difficult it is for bacteria to survive, and the less demand for preservatives. In addition, preservatives are also beneficial in reducing the potential for trace bacterial erosion in raw material storage, product production, and product bottling.
2, preservatives, will stimulate the skin?
Except for very sensitive skin or contact dermatitis, usually a small amount of preservative does not irritate the skin, but it does not rule out the use of controversial preservatives such as benzoate by some manufacturers to extend the shelf life of the product. Preservatives (many advocates of health skin care brands will be marked "Parabens free benzoates do not add"). In addition, due to the complexity of cosmetic product formulas, some active ingredients may require special preservatives, such as peptides, unsaturated fatty acids, etc. Therefore, you will find cosmetic products that are suitable for sensitive skin and are usually formulated in a simpler manner. This reduces the amount of preservatives used. Under normal circumstances, in order to ensure the safety of cosmetics, there will not be more than three kinds of preservatives added.
3. What are the harmful effects of preservatives on the skin?
Excessive or inappropriate preservatives can make the epidermal cells become immature and loosely structured, so that the epidermis becomes thin, vulnerable to external stimuli, and the defensive power is reduced; the DNA of the cells is damaged, the skin gradually loses its elasticity, and looseness and fine lines are easily generated. However, skin cells damaged by preservatives will continue to deflate and make the skin worse and worse.
4. Is it true that products without preservatives are really added?
National standards for preservatives are not fully harmonized. For example, Annex VI of the European Union's Cosmetic Regulations restricts all uses of isothiazolone to 15 ppm; the Cosmetic Ingredients Review (CIR) in the United States stipulates that The maximum amount is 15ppm, while the highest amount in the stay product is 7.5ppm; in Japan it is specified that isothiazolinone can only be used in rinse products. This also makes the same product in different national standards, can be a completely different degree of security. In general, preservatives are distinguished by chemical preservatives, safe non-toxic preservatives and natural organic preservatives (preservatives). Five related preservatives (including hydroxyphenyl esters) are covered in Appendix VI of the European Cosmetics Directive. Preservatives) In some cases, many substances that are not listed in the guidelines also have anti-microbial effects and are called "preservatives" (such as some alcohols, many essential oils and ethylhexyl glycerol). For example, Fancl's use of a preservative formulation is not in the national regulations for preservatives, and is referred to as the addition of no preservatives. , but it actually contains preservatives.
5. Is it possible to add no preservatives?
Usually, brands do not use or use preservative-like formulations when taking small-dose aseptic packaging. However, in order to prevent air from entering, these products need to be used within three days after the bottle is opened. Vacuum-backed pressure pump packaging Because it can prevent air from entering, it can also reduce the amount of preservatives. Recently, the Avene brand introduced a brand new "sterile chamber" concept. Based on the original vacuum nozzles, the "dead space" design of the original nozzle was improved. The original nozzle always left some products and caused back-flow pollution during use. The new design will not leave a dead end and keep the product sterile during use.
6, how to reduce the damage of preservatives?
As mentioned before, unless it is dermatitis or sensitive skin, in general, a small amount of preservatives added to **** certified cosmetics will not cause excessive damage to the skin. However, the following two points need attention: in the sensitive period of the skin, try to choose cosmetics without preservatives or products with a single formula to reduce the stimulation caused by preservatives; women who like to mix and match cosmetics should try their best to choose the same brand products, they usually choose The same preservative can reduce the irritation caused by compounded preservatives.
7. Is it safe to make homemade cosmetics without adding preservatives?
The addition of preservatives is not only to prevent the product from deteriorating during use, but also to reduce the contamination caused by the production, packaging hygiene, and raw material contamination, which may cause deterioration, unless it is a self-made aseptic workshop and can ensure zero pollution of raw materials, DIY Cosmetics have faced many safety hazards in the deployment process, and occasionally it can be, and long-term use, it is a more unsafe choice.
First of all, the main role of using preservatives in cosmetics is to prevent the growth of microorganisms in the product, to maintain the stability of the skin care products, and to prevent deterioration after use. The more water-based skin care products need more preservatives, such as lotions and lotions, and the closer to ointment or wax, the more difficult it is for bacteria to survive, and the less demand for preservatives. In addition, preservatives are also beneficial in reducing the potential for trace bacterial erosion in raw material storage, product production, and product bottling.
2, preservatives, will stimulate the skin?
Except for very sensitive skin or contact dermatitis, usually a small amount of preservative does not irritate the skin, but it does not rule out the use of controversial preservatives such as benzoate by some manufacturers to extend the shelf life of the product. Preservatives (many advocates of health skin care brands will be marked "Parabens free benzoates do not add"). In addition, due to the complexity of cosmetic product formulas, some active ingredients may require special preservatives, such as peptides, unsaturated fatty acids, etc. Therefore, you will find cosmetic products that are suitable for sensitive skin and are usually formulated in a simpler manner. This reduces the amount of preservatives used. Under normal circumstances, in order to ensure the safety of cosmetics, there will not be more than three kinds of preservatives added.
3. What are the harmful effects of preservatives on the skin?
Excessive or inappropriate preservatives can make the epidermal cells become immature and loosely structured, so that the epidermis becomes thin, vulnerable to external stimuli, and the defensive power is reduced; the DNA of the cells is damaged, the skin gradually loses its elasticity, and looseness and fine lines are easily generated. However, skin cells damaged by preservatives will continue to deflate and make the skin worse and worse.
4. Is it true that products without preservatives are really added?
National standards for preservatives are not fully harmonized. For example, Annex VI of the European Union's Cosmetic Regulations restricts all uses of isothiazolone to 15 ppm; the Cosmetic Ingredients Review (CIR) in the United States stipulates that The maximum amount is 15ppm, while the highest amount in the stay product is 7.5ppm; in Japan it is specified that isothiazolinone can only be used in rinse products. This also makes the same product in different national standards, can be a completely different degree of security. In general, preservatives are distinguished by chemical preservatives, safe non-toxic preservatives and natural organic preservatives (preservatives). Five related preservatives (including hydroxyphenyl esters) are covered in Appendix VI of the European Cosmetics Directive. Preservatives) In some cases, many substances that are not listed in the guidelines also have anti-microbial effects and are called "preservatives" (such as some alcohols, many essential oils and ethylhexyl glycerol). For example, Fancl's use of a preservative formulation is not in the national regulations for preservatives, and is referred to as the addition of no preservatives. , but it actually contains preservatives.
5. Is it possible to add no preservatives?
Usually, brands do not use or use preservative-like formulations when taking small-dose aseptic packaging. However, in order to prevent air from entering, these products need to be used within three days after the bottle is opened. Vacuum-backed pressure pump packaging Because it can prevent air from entering, it can also reduce the amount of preservatives. Recently, the Avene brand introduced a brand new "sterile chamber" concept. Based on the original vacuum nozzles, the "dead space" design of the original nozzle was improved. The original nozzle always left some products and caused back-flow pollution during use. The new design will not leave a dead end and keep the product sterile during use.
6, how to reduce the damage of preservatives?
As mentioned before, unless it is dermatitis or sensitive skin, in general, a small amount of preservatives added to **** certified cosmetics will not cause excessive damage to the skin. However, the following two points need attention: in the sensitive period of the skin, try to choose cosmetics without preservatives or products with a single formula to reduce the stimulation caused by preservatives; women who like to mix and match cosmetics should try their best to choose the same brand products, they usually choose The same preservative can reduce the irritation caused by compounded preservatives.
7. Is it safe to make homemade cosmetics without adding preservatives?
The addition of preservatives is not only to prevent the product from deteriorating during use, but also to reduce the contamination caused by the production, packaging hygiene, and raw material contamination, which may cause deterioration, unless it is a self-made aseptic workshop and can ensure zero pollution of raw materials, DIY Cosmetics have faced many safety hazards in the deployment process, and occasionally it can be, and long-term use, it is a more unsafe choice.
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