Ammonium Hydroxide, often criticized and misunderstood, is a key ingredient in many hair products, especially permanent dyes. This article delves into its chemistry, uses, benefits, risks, and environmental impact, offering a complete analysis of its role in the cosmetics industry.
Tag: cosmetic safety
Sodium C14-16 Olefin Sulfonate: Chemistry, Safety and Professional Shampoos
Sodium C14-16 Olefin Sulfonate is a synthetic anionic surfactant obtained by sulfonation of C14–C16 alpha-olefins. Its amphiphilic structure gives it high detergency and excellent performance in hard water, with a lower irritation profile than SLS. Hairswiss analyzes its molecular chemistry, surfactant properties and role in professional shampoos.
Denatured Alcohol in Hair Care: Chemistry, Risks and Professional Guide
Denatured Alcohol (Alcohol Denat., ethanol C2H5OH, MW 46 Da) is a short-chain, volatile and water-miscible alcohol whose drying effect on the hair fiber results from the solubilization of intercuticular lipids and surface water entrainment by evaporation. Hairswiss analyzes its chemistry, problematic concentration thresholds and professional formulation alternatives.
Hydrolyzed Keratin and Macadamia Oil: Molecular Complementarity on the Hair Fiber
Hydrolyzed keratin (peptides 300–10,000 Da) and macadamia oil (60–85% palmitoleic acid ω-7, rare in cosmetics) form a complementary formulation association: the protein fills cuticle gaps, the oil reconstitutes the surface lipid film. Hairswiss analyzes their mechanisms of action and synergy on degraded hair fibers.