Glyceryl Undecylenate is an ester derived from glycerin (glycerol) and undecylenic acid. It is commonly used in the cosmetic and personal care industries due to its multifunctional properties.

1. Chemical Composition

• Chemical Name: Glyceryl Undecylenate

• Molecular Formula: C??H??O?

• Molecular Weight: Approximately 258.35 g/mol

• Structure: It is formed by esterifying undecylenic acid (an unsaturated fatty acid) with glycerin.

2. Properties

• Appearance: Typically appears as a colorless to pale yellow liquid.

• Solubility: It is soluble in oils and slightly soluble in water.

• Odor: Mild, characteristic odor.

• Stability: Stable under normal storage conditions but may be sensitive to light and air.

3. Functions and Applications

• Antimicrobial Agent: Glyceryl Undecylenate is valued for its antimicrobial properties, making it effective against bacteria, fungi, and yeast. It is commonly used in products to help preserve formulations and protect against microbial contamination.

• Skin Conditioning: It acts as an emollient, helping to moisturize and soften the skin. This makes it a beneficial ingredient in skincare products such as lotions, creams, and ointments.

• Formulation Stabilizer: It can help stabilize emulsions in cosmetic products, ensuring a consistent texture and performance.

• Hair Care: In hair care products, Glyceryl Undecylenate can condition the hair and scalp, helping to maintain moisture and potentially offering some antifungal benefits for scalp health.

• Deodorant: Due to its antimicrobial activity, it is sometimes included in deodorant formulations to reduce body odor by inhibiting the growth of odor-causing bacteria.

4. Safety and Regulatory Status

• Safety: Generally considered safe for use in cosmetics and personal care products when used at appropriate concentrations. It is non-toxic and non-irritating under typical usage conditions.

• Regulatory Status: Approved for use in cosmetics and personal care products in many regions, including the European Union and the United States, subject to concentration limits.

5. Common Uses

• Cosmetics: Used in creams, lotions, deodorants, and other personal care products.

• Hair Care Products: Found in shampoos, conditioners, and scalp treatments.

• Pharmaceuticals: Sometimes used in topical formulations due to its antimicrobial properties.

Glyceryl Undecylenate is a versatile ingredient that combines the benefits of moisturizing and antimicrobial activity, making it a popular choice in the formulation of skincare, hair care, and personal hygiene products.

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