Overview
Lauramide DEA is a versatile nonionic surfactant synthesized from lauric acid and diethanolamine. It is prized in cosmetic formulations for its dual functionality as a foam booster and viscosity enhancer. The compound's mildness makes it suitable for frequent-use products like shampoos and body washes. As a derivative of coconut oil (lauric acid), it aligns with the growing demand for bio-based ingredients in personal care. Its compatibility with anionic, cationic, and amphoteric surfactants allows formulators to create stable, luxurious lathers without compromising skin friendliness.
Physical and Chemical Properties
Lauramide DEA presents as a viscous liquid with a pale yellow to amber hue. Its molecular structure features a hydrophobic lauric acid chain and hydrophilic diethanolamine groups, enabling effective interfacial activity. The compound exhibits excellent solubility in both aqueous and organic phases. With a density near 0.99 g/cm³, it integrates easily into liquid formulations. While specific melting and boiling points are less relevant for this surfactant, its thermal stability typically withstands cosmetic processing temperatures up to 80°C. The pH of 1% solutions generally ranges from 8 to 10, making it compatible with most personal care systems.
Main Applications
The primary use of Lauramide DEA is in personal care products requiring rich, stable foam. It is a staple in shampoos, where it enhances lather volume and creaminess while reducing the harshness of primary surfactants like SLS. Bubble baths leverage its ability to stabilize air-liquid interfaces for long-lasting bubbles. In hand soaps and shower gels, it functions as a secondary surfactant and thickener, often at 1-5% concentration. Some industrial applications include textile processing aids and household cleaners, though cosmetic uses dominate the market demand. Formulators value its ability to reduce total surfactant load while maintaining performance.
Safety and Storage
Lauramide DEA is classified as low toxicity (LD50 > 2000 mg/kg orally in rats) and non-sensitizing at typical use levels. However, undiluted product may cause mild eye or skin irritation, necessitating PPE during handling. Regulatory approvals include FDA acceptance for cosmetic use and compliance with EU Cosmetics Regulation. Proper storage involves keeping containers tightly sealed in well-ventilated areas below 30°C. Shelf life typically exceeds two years when protected from oxidation. Bulk storage in stainless steel or polyethylene containers prevents contamination. Manufacturers often add antioxidants like BHT to prolong stability.
B2B Procurement Guide
When sourcing Lauramide DEA, prioritize suppliers with GMP certification and batch-specific Certificates of Analysis. Key specifications to verify include active content (≥95%), free diethanolamine levels (<0.5%), and peroxide value (<10 meq/kg). Packaging options range from 25kg polyethylene drums to 1000kg IBCs for large-scale buyers. Market prices fluctuate with coconut oil feedstock costs, typically ranging $3-$6/kg for cosmetic-grade material. Consider regional regulations—for example, some jurisdictions require nitrosamine testing. Sample evaluation should assess compatibility with your existing formulations, particularly pH stability and viscosity effects. MOQs vary but often start at 500kg for direct manufacturer purchases.
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