Disodium EDTA, a synthetic chelating agent, excels in maintaining formulation integrity. By binding with metal ions (e.g., calcium, iron, magnesium) introduced through water or packaging, it halts unwanted oxidation and degradation, thus preserving active ingredient efficacy, fragrance stability, and emulsion consistency. It prolongs shelf life, safeguards product texture, and ensures uniform performance across batches.
In skincare, Disodium EDTA enhances foaming in cleansers, stabilizes vitamin C and retinoid serums by preventing metallic-induced oxidation, and supports smooth textural delivery. In haircare, it improves lather quality in shampoos, mitigates mineral build-up from hard water, and protects color integrity in dyes — especially vital in leave-on or rinse-off treatments.
Quick Insights
Ingredient Rating:
GOOD
Type of Ingredient:
Texture Enhancer, Cleansing Agent, Emulsifier, Preservative and Chelating Agent
Intended Function:
To bind and deactivate metal ions, ensuring formula stability, consistency, and enhanced sensory and preservative performance in both skincare and haircare products.
Common Applications:
Used in moisturizers, serums, cleansers, shampoos, conditioners, color treatments, and other emulsion-based or rinse-off products — especially where oxidation and metallic interference are concerns.
Target Audience:
Brand owners and manufacturers focused on high-performance, stable cosmetic formulations — particularly those containing oxidation-prone actives or marketed for sensitive skin and hair care in regions with hard water.
Also Known As:
Disodium Ethylenediaminetetraacetic Acid, Disodium EDTA, EDTA Disodium Salt.
Safety Analysis
Regulatory Endorsement: The Cosmetic Ingredient Review (CIR) Expert Panel confirmed that Disodium EDTA is safe as used in cosmetics — non-irritating, non-sensitizing, and non-carcinogenic at typical concentrations. Systemic absorption through the skin is minimal, presenting negligible risk.
Environmental Aspect: Disodium EDTA is poorly biodegradable and may persist in aquatic ecosystems, raising ecological concerns that eco-conscious formulators may wish to address.
References
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