Chelating Agents

Chelating Agents

Chelating agents have been widely used in cosmetics. Their main function is to chelate metal ions in raw materials or water to prevent these metal ions from causing adverse effects on products such as rancidity, precipitation and inactivation.

Iron ions are very important to microorganisms. Iron is one of the most important nutrient sources for microorganisms. It is the redox center of iron-sulfur proteins in the electron transport chain and participates in the reduction reaction of nucleotide precursors.

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Chelating Agents Mechanisms

In cosmetics, chelating agents are often used to stabilize metal ion ingredients in formulas, such as iron, copper, zinc, etc. The presence of these metal ions in cosmetics may cause problems such as oxidation and deterioration, and chelating agents can combine these metal ions with ligand groups to form stable complexes, thereby slowing down the oxidation rate of cosmetics and improving their stability and shelf life. In addition, chelating agents can also be used to improve the texture, touch and feel of cosmetics. By combining with metal ions, chelating agents can reduce the irritation and sensitive reactions of metal ions on the skin, making cosmetics more gentle and comfortable. Therefore, chelating agents have important functions and application value in cosmetics. As shown in the figure to the right, surface modification of inorganic nanoparticles is critical to the quality and performance of pigments, cosmetics, and composites. Using an in-situ polymerization process, UV shielding properties and dispersion stability can be improved, which can help expand applications in the cosmetic field.

Fig. 2 Schematic diagram of mechanism of chelating agents

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Reference

1. Kim, NaRi, et al. Surface Coating of titanium dioxide nanoparticles with a polymerizable chelating agent and its physicochemical property. ACS omega 2023, 8(21): 18743-18750.

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Chelating Agents

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