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SODIUM DEHYDROACETATE

Last update on Jan 22, 2025
Sodium Dehydroacetate is a synthetic preservative widely used in cosmetics to inhibit the growth of bacteria, fungi, and yeast, thereby extending product shelf life. It is the sodium salt of dehydroacetic acid and offers broad-spectrum antimicrobial properties. It appears as a white to off-white crystalline powder. It is freely soluble in water allowing for easy incorporation in water-based products. Sodium Dehydroacetate is also an excellent stabilizer and is compatible with most cosmetic formulations. It is commonly found in moisturizers, serums, shampoos, conditioners, and makeup. This ingredient is safe and non-toxic and is rarely associated with any allergic reactions. The chemical formula of Sodium Dehydroacetate is C8H7NaO4.
CAS Number: 4418-26-2Chem/IUPAC Name: Sodium 1-(3,4-dihydro-6-methyl-2,4-dioxo-2H-pyran-3-ylidene)ethanolateEINECS/ELINCS No: 224-580-1COSING REF No: 37851

Products with SODIUM DEHYDROACETATE

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Neofect WBH

by Jan Dekker

INCI: SODIUM BENZOATE | SODIUM DEHYDROACETATE | AQUA
  • Sustainable option
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FENEXOL

by Vevy Europe

INCI: RICINOLETH-40 | POLYSORBATE 20 | SODIUM DEHYDROACETATE | SORBIC ACID | UNDECYLENIC ACID
  • Sustainable option
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What is SODIUM DEHYDROACETATE used for?

Sodium Dehydroacetate is primarily used as a preservative in cosmetics to prevent the growth of bacteria, mold, and yeast, ensuring product safety and longevity. Its broad-spectrum antimicrobial properties make it ideal for water-based formulations, including creams, lotions, and serums. It is also used in haircare products like shampoos and conditioners to maintain stability. It prevents microbial contamination in makeup products like liquid foundations, mascaras, and eyeliners. It is also included in cleansing products, such as facial cleansers and wipes. Sodium Dehydroacetate’s compatibility across diverse pH ranges and formulations makes it a versatile and essential ingredient in the cosmetic industry.

Origin

Sodium Dehydroacetate is synthesized in an aqueous medium by the reaction of dehydroacetic acid with sodium hydroxide. The reaction involves neutralizing the acidic group of dehydroacetic acid to form its sodium salt. This process is carried out under controlled conditions to ensure product purity and stability. Once the reaction is complete, the solution is dried or crystallized to yield Sodium Dehydroacetate in a powdered or granular form. The final product undergoes further purification for use in cosmetics.

What does SODIUM DEHYDROACETATE do in a formulation?

ANTIMICROBIAL|
PRESERVATIVE|
STABILISING

Safety Profile

Sodium Dehydroacetate is safe when used up to the recommended concentration of 0.6%. It is non-toxic. It has a low risk of irritation as it is not absorbed significantly through the skin. It is also safe for use on delicate areas, including facial and eye makeup. However, patch testing is recommended to check for individual compatibility. Sodium Dehydroacetate is also biodegradable and environmentally-friendly.

SODIUM DEHYDROACETATE alternatives

SODIUM DEHYDROACETATE technical profile

Property Values
Boiling Point 332.6°C
Melting Point 295°C
pH 3.0 - 9.0
Solubility Highly soluble in water
Viscosity Low