Application and function of DMDMH
DMDM Hydantoin (DMDMH) CAS: 6440-58-0
In daily life, the shampoo, shower gel, shaving cream, cream and cleaning agent used in the ingredient list is often DMDMH, which is mainly used to ensure product quality, avoid secondary pollution resulting in product deterioration, and effectively extend the use cycle.
DMDMH is a formaldehyde sustained-release preservative. Soluble in water, lower alcohols, ethylene glycol, stable in the water phase and oil-water emulsion can be stored for one year in the temperature -10 °C to 50 °C, PH value6.5 to 8.5; It is mainly used in various fields of cosmetics and daily chemical products. It has a broad spectrum of antibacterial activity against bacteria, yeast and mold in personal care products, and the effect is better than that of diimidazolidinyl urea preservatives. Good compatibility with cationic, anionic and non-ionic surfactants.
In each country's legal and regulatory requirements, DMDMH can be used in the United States, Europe, Japan and China. The highest supplemental level in the United States is 1.0%(active substance); Europe 0.6%(active substance); In Japan, the maximum additive amount is 0.3%(active substance) in non-mucous contact wash type cosmetics. The specific dosage is accurately calculated according to the regulatory requirements and the minimum antibacterial concentration, and the pH range is 3.0-9.0 when the addition effect is better. Cosmetics manufacturers add appropriate amount of DMDMH according to their own products can effectively prevent product corruption, stratification, thinning and other problems.
