
FAQ (Frequently Asked Questions)
1. What is NanoActiv DMDM(H)?
NanoActiv DMDM(H) is a nano-engineered version of DMDM Hydantoin, retaining its preservative efficacy while offering enhanced dispersion, integration, and stability in modern personal care formulations.
2. What is DMDM Hydantoin and why is it used in cosmetics?
DMDM Hydantoin—also known by its IUPAC name 1,3-Bis(hydroxymethyl)-5,5-dimethylimidazolidine-2,4-dione—is a formaldehyde-releasing preservative widely used in shampoos, conditioners, skincare, and makeup to inhibit the growth of bacteria, yeast, and fungi.
3. How does NanoActiv DMDM(H) differ from standard DMDM Hydantoin?
NanoActiv DMDM(H) enhances DMDM Hydantoin's key benefits—broad-spectrum preservation and antimicrobial action—by leveraging nano-scale particle design for:
- Superior formulation clarity and smoother texture
- Better dispersion and uniform integration
- Potentially improved efficacy at similar usage levels
4. What are the benefits of using NanoActiv DMDM(H)?
- Enhanced antimicrobial performance with uniform distribution
- Improved stability and compatibility in emulsions and leave-on products
- Refined sensory feel without compromising preservation efficacy
5. In which personal care products is NanoActiv DMDM(H) most effective?
Ideal for:
- Rinse-off products like shampoos, body washes, and cleansers
- Leave-on products such as lotions, creams, makeup, and serums
- Any formulation requiring robust preservation with smooth sensory qualities
6. What is the CAS Number and INCI Name of DMDM Hydantoin?
CAS Number: 6440-58-0
INCI Name: DMDM Hydantoin
NanoActiv DMDM(H) uses the same INCI designation to ensure regulatory compliance, with “nano-formulated” noted in technical materials where transparency is required.
7. Is NanoActiv DMDM(H) safe for use in personal care products?
Yes—when used within regulated limits. DMDM Hydantoin is generally recognized as safe up to around 0.074% in final formulation according to the Cosmetic Ingredient Review (CIR)
Healthline. The EU permits up to 0.6% concentration. Nano-formatting doesn't alter safety when properly encapsulated and tested.
8. What safety considerations should formulators keep in mind?
While DMDM Hydantoin is safe within regulated levels, it can release small amounts of formaldehyde, which may cause contact dermatitis or allergic reactions in sensitive individuals. The nano version should undergo appropriate safety, stability, and allergenicity testing—especially for leave-on applications.
9. How should NanoActiv DMDM(H) be incorporated into formulations?
Add NanoActiv DMDM(H) during the final cooling or aqueous blending phase, ensuring gentle mixing for even dispersion. Recommended usage levels mirror conventional DMDM Hydantoin: typically between 0.2% and 0.6%, depending on product type and regulatory constraints. Always conduct efficacy and stability testing for verification.
10. Who benefits most from using NanoActiv DMDM(H)?
NanoActiv DMDM(H) is especially suitable for:
- Formulations that demand refined texture and visual clarity
- Brands seeking efficient preservation with modern aesthetic appeal
- Sensitive skin lines where controlled release may reduce irritation potential (though patch testing remains essential)