San Shield

San Shield Encyclopedia

DMDM (Dimethylol Dimethyl Hydantoin)

DMDM (Dimethylol Dimethyl Hydantoin ) is a preservative used in San Shield. Preservatives play an important role in cosmetics and skincare products, helping to prevent the growth of bacteria, fungi, and other microorganisms, extending the shelf life of the product, and ensuring its safety.

DMDM inhibits the growth of microorganisms by releasing small amounts of formaldehyde. It has broad-spectrum antimicrobial and germicidal activity, which can prevent contamination issues caused by bacteria and fungi. This helps to protect San Shield from microbial contamination.

DMDM is typically used in liquid form and added to cosmetics and skincare products. The amount used is usually determined based on the purpose, formulation, and target market of the product. San Shield adjusts its usage according to specific requirements when formulating the product.

DMDM is one of the preservatives that have been extensively studied and evaluated. It is considered safe at recommended usage levels.


It’s important to note that everyone’s reaction to these ingredients may vary. It is recommended to perform a patch test on a small area of skin before using any new product to ensure there are no adverse reactions.