目前并未發(fā)現(xiàn)EDTA二鈉被列為禁用或限用物質(zhì)。雖然沒有限量，但EDTA二鈉通常在化妝品中的添加量為0.05-0.2%。而且化妝品不同于食品，根據(jù)化妝品的使用特性，每次微量的使用，在皮膚強大的屏障功能之下，吸收量甚微。下面氫氧化鉀廠家就來詳細(xì)講講EDTA二鈉在化妝品中的利與弊吧。

At present, it is not found that disodium EDTA is listed as prohibited or restricted substance. Although there is no limit, the amount of EDTA disodium in cosmetics is usually 0.05-0.2%. Moreover, cosmetics are different from food. According to the use characteristics of cosmetics, each small amount of use has little absorption under the strong barrier function of the skin. Now let's talk about the advantages and disadvantages of disodium EDTA in cosmetics in detail.

在化妝品的生產(chǎn)中，水、生產(chǎn)設(shè)備、原料和包裝都有可能帶入金屬離子。EDTA二鈉在化妝品中重要的功能就是螯合金屬離子，她在溶液中像螃蟹一樣鉗住金屬離子不放，使其很難發(fā)生正常的價態(tài)反應(yīng)，從而維護(hù)了產(chǎn)品的穩(wěn)定性，減少了有害金屬離子對皮膚的傷害。

In the production of cosmetics, metal ions may be introduced into water, production equipment, raw materials and packaging. The important function of disodium EDTA in cosmetics is to chelate metal ions. She holds the metal ions like a crab in the solution, making it difficult for them to have normal valence reaction, thus maintaining the stability of the product and reducing the harm of harmful metal ions to the skin.

另外她還有防腐增效作用，但是EDTA二鈉的譜是不完整和有缺陷的，比如她對革蘭氏陰性菌有較好的能力，特別是對綠膿假單胞菌，在低250ppm時就可以殺滅99.9%，但對革蘭氏陽性菌就沒此效果。所以也限制了他成為防腐劑單獨使用，常常和其他防腐劑一起聯(lián)合增效。

In addition, she has antiseptic and synergistic effects, but the antibacterial spectrum of EDTA disodium is incomplete and defective. For example, she has good antibacterial ability against gram-negative bacteria, especially against pseudomonas aeruginosa, which can kill 99.9% at 250 ppm, but has no such effect on gram-positive bacteria. Therefore, it also limits its use as a preservative alone, and often works together with other preservatives to enhance efficiency.

當(dāng)然也有人指出EDTA二鈉存在一定的刺激和過敏問題。但我們注意到，EDTA二鈉在眼藥水中也有應(yīng)用?？梢娝拇碳ば栽谝欢ǖ奶砑恿肯虏⒉粡娏?。

Of course, some people pointed out that EDTA disodium has certain irritation and allergy problems. However, we have noticed that EDTA disodium can also be used in eye drops. It can be seen that her irritation is not strong at a certain amount.

另外由于她的防腐增效作用，也可以降低一些常規(guī)防腐劑的使用量，從這個角度來說，又降低了常規(guī)防腐劑的刺激和過敏問題。所以，添加EDTA二鈉的產(chǎn)品，是不是會更刺激仍舊不是非常明確的。

In addition, because of its antiseptic and synergistic effect, it can also reduce the use of some conventional preservatives. From this perspective, it also reduces the irritation and allergy problems of conventional preservatives. Therefore, it is still unclear whether the products added with disodium EDTA will be more stimulating.

當(dāng)然為了穩(wěn)妥起見，我們也可以用其他的螯合劑替代EDTA二鈉，比如辛酰羥肟酸，植酸鈉等。但新的螯合劑，就如同新的防腐劑一樣，同樣需要摸索實踐，用時間和更多的數(shù)據(jù)來證實這種替代是不是更有價值。

Of course, for the sake of safety, we can also use other chelating agents to replace EDTA disodium, such as octyl hydroxamic acid, sodium phytate, etc. However, new chelating agents, just like new preservatives, also need to explore and practice, and use time and more data to confirm whether this alternative is more valuable.

總之，化妝品中的EDTA二鈉，雖然不那么美好，但她在化妝品中也算功不可沒，對于含肽，或者植物提取物較多的體系，即使不使用EDTA二鈉也好使用其他的螯合劑。作為化妝品使用歷史悠久且廣泛的EDTA二鈉，合理的添加劑量下不需要太過擔(dān)憂她的性。更多相關(guān)產(chǎn)品的認(rèn)識就來我們網(wǎng)站http://www.yiqijieneng.cn咨詢了解吧。

In a word, although disodium EDTA in cosmetics is not so beautiful, it has also made great contributions in cosmetics. For systems containing peptides or more plant extracts, it is better to use other chelating agents even if disodium EDTA is not used. EDTA disodium, which has a long history and is widely used as cosmetics, does not need to worry too much about its safety at a reasonable dosage. Come to our website to learn more about relevant products http://www.yiqijieneng.cn Ask and understand.