Tetrasodium Glutamate Diacetate (TSGD) – Eco-Friendly Chelating Agent

Tetrasodium Glutamate Diacetate (TSGD)

Biodegradable chelating agent for improved stability, clarity, and preservative performance.

INCI: Tetrasodium Glutamate Diacetate.

Appearance: White to off-white powder.

Solubility: Water-soluble.

Typical Use Level: 0.05–0.30%.

Role in Formulas: Tetrasodium Glutamate Diacetate (TSGD) is a biodegradable chelating agent that binds trace metal ions such as calcium, magnesium, and iron, preventing them from interfering with formulation stability. By reducing metal-induced oxidation, discoloration, and degradation, it helps maintain product clarity, color, and overall performance while also supporting preservative effectiveness. It is widely used as a more environmentally friendly alternative to traditional chelating agents such as EDTA.

What It Does

Tetrasodium Glutamate Diacetate (TSGD) is a high-performance chelating agent used to improve the stability and longevity of cosmetic and personal care formulations.

Metal ions naturally present in water, botanicals, clays, and other raw materials can negatively affect formulas by accelerating oxidation, discoloration, ingredient degradation, and preservative stress. TSGD helps neutralize these issues by binding unwanted metal ions, allowing the formula to remain more stable, effective, and visually consistent over time.

Key Benefits

• Helps improve overall formulation stability and shelf life.
• Reduces oxidation and discoloration caused by trace metals.
• Enhances preservative performance in many systems.
• Supports better clarity, consistency, and product integrity.
• Biodegradable and more environmentally friendly than traditional EDTA.
• Useful in both simple and active-rich formulations.

Suggested Use Levels

• 0.05–0.10% in standard emulsions, cleansers, and toners.
• 0.10–0.20% in serums and active-rich formulations.
• 0.20–0.30% in more challenging systems with higher instability risk.

Ideal Applications

• Serums and treatment products
• Cleansers and toners
• Emulsions and creams
• Hair care formulations
• Botanical and active-rich systems
• Preservative-sensitive formulas

Formulation Notes

• Add to the water phase and mix until fully dissolved.
• Compatible with most cosmetic ingredients and systems.
• Effective across a broad pH range, approximately 3–10.
• Can partially or fully replace EDTA in many formulations.

As with any formulation support ingredient, final stability and compatibility should be tested in the intended system and packaging. Humans love skipping this part and then blaming the raw material.

Documents

• Certificate of Analysis (COA)
• Safety Data Sheet (SDS)