Sodium Cocoyl Glutamate {CAS: 68187-32-6, powder}

Sodium Cocoyl Glutamate (SCG) is a sophisticated anionic surfactant highly valued in cosmetic formulations for its exceptional mildness and performance. Derived from the fatty acids of coconut oil (cocoyl group) and L-glutamic acid, a naturally occurring amino acid, SCG embodies a commitment to natural-origin and sustainable chemistry. Its synthesis involves the acylation of glutamic acid, followed by neutralization to yield the sodium salt, which is typically provided in a powder form for enhanced formulation flexibility. This ingredient is celebrated for its ability to produce a rich, creamy, and stable lather, even in hard water conditions, a characteristic that significantly elevates the user experience in cleansing products. Unlike harsher traditional surfactants, SCG maintains excellent skin compatibility, making it a preferred choice for sensitive skin formulations and products designed for frequent use, ensuring a gentle yet effective cleanse without compromising skin integrity.

SCG's primary benefit lies in its gentle cleansing efficacy coupled with superior skin and hair conditioning properties. Its mildness is attributed to its amino acid structure, which closely mimics the natural moisturizing factors (NMF) found in the skin. This biomimetic quality enables SCG to cleanse effectively while preserving the skin's essential lipid barrier, thereby reducing post-wash dryness and irritation. Scientific research consistently demonstrates that amino acid-derived surfactants like SCG exhibit significantly lower irritation potential compared to common sulfate-based alternatives. Studies measuring transepidermal water loss (TEWL) often show that formulations incorporating SCG result in minimal disruption to the skin barrier after washing, indicating superior moisturization retention. The L-glutamic acid component contributes a hydrophilic head group, ensuring excellent water solubility and allowing formulations to be optimized closer to the skin's natural physiological pH of 5.5.

Sodium Cocoyl Glutamate finds extensive application across a diverse spectrum of cosmetic products, including facial cleansers, body washes, shampoos, baby care products, and specialized formulations for sensitive skin. Its remarkable ability to generate stable, luxurious foam makes it invaluable in foaming cleansers, while its mild profile ensures its suitability for rinse-off and even some leave-on products. Key quality considerations for SCG include ensuring high purity, optimal particle size distribution for efficient dissolution, and consistent surfactant activity. Manufacturers typically provide data on critical micelle concentration (CMC) and foam stability to guarantee performance. Dermatological research, including patch tests and repeated insult patch tests (RIPT), consistently classifies SCG as non-irritating and non-sensitizing. A comparative study published in the *International Journal of Cosmetic Science* highlighted SCG's superior skin compatibility and reduced protein denaturation compared to sodium lauryl sulfate, solidifying its position as a high-performance, gentle, and environmentally sound ingredient in modern cosmetic science.