DropCare® EDDS: The Next-Generation, Eco-Conscious Chelator for Modern Cosmetics

In the evolving world of cosmetic science, the demand for high-performance, safe, and sustainable ingredients has never been greater. Meet DropCare^® EDDS (Trisodium Ethylenediamine Disuccinate), a groundbreaking green chelator that is setting a new standard for efficacy and environmental responsibility in personal care formulations.

What is DropCare^® EDDS?

DropCare^® EDDS is a phosphorus-free, readily biodegradable chelating agent. Its molecular structure, derived from ethylenediamine and succinic acid, contains multiple coordination atoms that form highly stable complexes with metal ions. This makes it a powerful and versatile ingredient for a wide range of cosmetic and personal care applications.

Key Identifiers:

• INCI Name: Trisodium Ethylenediamine Disuccinate

• CAS No.: 9001-73-4

Why Choose EDDS Over Traditional Chelators?

Compared to conventional chelators like EDTA, DropCare^® EDDS offers significant advantages in selectivity, safety, and sustainability:

1. Superior Metal Ion Selectivity: EDDS exhibits a high affinity for transition metal ions like copper and iron, which are primary catalysts for oxidation in formulations. It has a weaker effect on calcium and magnesium, thereby reducing the risk of corrosion to equipment and irritation to the skin.

2. Excellent Biodegradability: This is its standout feature. While traditional chelators can persist in the environment, EDDS is rapidly and completely broken down by microorganisms. Studies show it can achieve full mineralization in soil within 28 days, with a half-life of just 2.5 days. This aligns perfectly with global "Clean Beauty" trends and stringent EU and China regulations for eco-friendly ingredients.

3. High Performance in Formulations: It is stable under high temperatures and in a broad pH range (recommended use between pH 3-9), making it suitable for diverse product types.

Key Functions & Benefits in Cosmetic Formulations

1. Stabilizes Formulations by Chelating Metal Ions
Metal ions in water or raw materials can cause product instability, leading to cloudiness, precipitation, or reduced efficacy of surfactants. DropCare^® EDDS effectively sequesters these ions (e.g., Fe, Cu, Al), ensuring the clarity, stability, and performance of cleansers, shampoos, and other rinse-off products, even in hard water conditions.

2. Enhances Antioxidant & Preservation Efficacy
Metal ions accelerate the oxidation of oils, fragrances, and active ingredients like Vitamin C. By chelating these pro-oxidant metals, EDDS acts as an indirect antioxidant, prolonging product shelf life and protecting the integrity of valuable actives. It also works synergistically with preservatives like phenoxyethanol, allowing for potential reduction in preservative concentrations while maintaining antimicrobial efficacy.

3. Regulates pH & Reduces Irritation
As a weakly acidic substance, DropCare^® EDDS helps buffer formulations to a pH level closer to the skin's natural acidic mantle (pH 5.5-6.0). This helps minimize potential skin irritation, enhancing product mildness and comfort.

4. Maintains Charge Balance & Viscosity
In formulations thickened with inorganic salts, metal ions can disrupt charge balance, leading to viscosity changes and instability. EDDS helps maintain ionic equilibrium, ensuring consistent product texture and performance.

Technical Profile

Application Guidance

• Recommended Use Level: 0.1% - 3.0% (A typical usage range is 0.6% - 1.3%).

• Solubility: Excellent water solubility.

• Recommended For:

  • Shampoos & Conditioners

  • Soaps & Body Washes

  • Creams & Lotions

  • Sun Care Products

• Storage: Store in a cool, dry, and dark place in a sealed container. For optimal stability, storage at 2-8°C is recommended. Shelf life is 2 years.

A Note on Compatibility: Avoid combining with extreme pH ingredients, strong oxidizers/reducing agents, or other chelators. For sensitive skin products, consider using at concentrations ≤ 0.1%.

Conclusion

DropCare^® EDDS is more than just a chelator; it's a strategic choice for brands committed to creating high-performance, safe, and environmentally sustainable cosmetics. Its powerful chelation, combined with its rapid biodegradability, makes it the ideal ingredient for the future of clean and effective beauty.

Embrace the future of green formulation. Formulate with DropCare^® EDDS.

If you are interested in our products and want to know more details, please contact judyzhou@drop-bio.com.