Palmitoyl Myristyl Serinate is a synthetic compound derived from the esterification of palmitic acid and myristic acid with serine. It is used in cosmetic formulations for its emollient, moisturizing, and skin-conditioning properties.

Chemical Composition and Structure

The chemical composition of Palmitoyl Myristyl Serinate includes:

• Palmitic Acid: A saturated fatty acid that provides emollient properties and helps improve skin texture.
• Myristic Acid: Another saturated fatty acid known for its moisturizing benefits.
• Serine: An amino acid that contributes to skin hydration and promotes healthy skin function.

Structurally, Palmitoyl Myristyl Serinate consists of palmitic and myristic acid chains linked to serine, which enhances its ability to nourish and condition the skin.

Physical Properties

• Appearance: Typically a white to off-white solid or waxy substance.
• Solubility: Soluble in oils and organic solvents; limited solubility in water.
• pH: Generally neutral, around 6-7.
• Odor: Mild, characteristic of fatty acid derivatives.
• Stability: Stable under normal storage conditions but should be protected from extreme temperatures.

Production Process

• Esterification: Palmitoyl Myristyl Serinate is produced through the esterification process, where palmitic and myristic acids are reacted with serine in the presence of a catalyst.
• Purification: The resulting compound is purified to remove any unreacted materials and by-products.
• Formulation: The purified Palmitoyl Myristyl Serinate is incorporated into cosmetic products, often combined with other moisturizing agents for enhanced performance.

Applications

• Medical: Limited use in formulations requiring skin conditioning and hydration.
• Cosmetics: Commonly included in creams, lotions, and serums for its moisturizing and emollient effects.

INCI Functions:

Skin conditioning agent. It is the mainstay of topical skin treatment as it has the function of restoring, increasing or improving skin tolerance to external factors, including melanocyte tolerance. The most important function of the conditioning agent is to prevent skin dehydration, but the subject is rather complex and involves emollients and humectants that can be added in the formulation.

• Industrial Uses: Occasionally utilized in formulations that require emollient properties.

Environmental and Safety Considerations

Palmitoyl Myristyl Serinate is generally regarded as safe for topical application in cosmetics when used according to recommended guidelines. It is well-tolerated by most skin types, but individuals with sensitivities to fatty acids should exercise caution. 

Responsible sourcing and formulation practices are essential to ensure that the ingredient is free from harmful contaminants and produced sustainably.