Sodium Hydroxide, with the chemical formula NaOH, is a strong base that is used in various skincare and personal care products. It is a white, hygroscopic, and highly alkaline substance that is soluble in water, alcohol, and glycerin. In skincare, it is primarily used in soap-making processes, where it helps in saponification, the conversion of fats/oils into soap. It is also used as a pH adjuster in some formulations.
While sodium hydroxide is an essential component in soap production, it is important to handle it with care due to its highly caustic nature. Direct contact with skin can lead to severe burns and irritation. Therefore, it is crucial to follow proper safety measures when working with sodium hydroxide.
It's worth noting that in finished skincare products, the sodium hydroxide is usually fully reacted and does not pose a risk to the skin when used in appropriate concentrations. However, individuals with sensitive skin should be cautious when using products containing sodium hydroxide, and a patch test is advisable.