Sodium 2-((hydroxymethyl)amino)acetate, also known as sodium hydroxymethylglycinate, is a specialty chemical widely used in the personal care and cosmetic industry primarily as a preservative, buffering agent, and pH adjuster. It acts as a formaldehyde-releasing antimicrobial agent, helping to prevent microbial growth and extend product shelf life while maintaining formulation stability within the desired pH range. This compound is commonly employed in hair care products, such as shampoos and conditioners, to enhance performance, protect hair from damage, and ensure gentleness. In skincare products, it contributes to mildness and suitability for sensitive skin due to its non-irritating properties. Additionally, its chelating abilities bind to metal ions, preventing product degradation and discoloration.