While often associated with industrial cleaning and manufacturing, Sodium Tetraborate (CAS 1330-43-4), also known as anhydrous borax, has found a significant place in the cosmetics and personal care industry. Its unique chemical properties make it a valuable ingredient in a variety of formulations, from lotions and creams to specialized oral care products.

One of the primary roles of Sodium Tetraborate in cosmetic formulations is as an emulsifying agent and pH adjuster. Many cosmetic products, such as lotions and creams, are emulsions of oil and water. Sodium Tetraborate helps to stabilize these emulsions, ensuring that the oil and water phases remain mixed and do not separate over time. It achieves this by reacting with fatty acids in the formulation to create soaps, which act as emulsifiers. This function is critical for product stability and texture, making it a sought-after 'cosmetics ingredient.'

The compound's mild alkalinity also allows it to adjust the pH of cosmetic products. Maintaining a specific pH range is crucial for product efficacy, safety, and compatibility with the skin. Sodium Tetraborate can help bring the pH of a formulation into the desired range, contributing to the overall performance of skincare products like moisturizers and sunscreens.

Interestingly, Sodium Tetraborate has also been used in some specialized toothpastes and mouthwashes. Its mild antiseptic and astringent properties can contribute to oral hygiene. While its use in these products has become less common due to evolving regulations and the availability of alternative ingredients, its historical presence highlights its versatility.

For manufacturers in the personal care sector, sourcing high-quality Sodium Tetraborate is essential. They often rely on 'cosmetics ingredient suppliers' or specialty chemical distributors for this compound. The purity of the Sodium Tetraborate is crucial to ensure product safety and efficacy, with manufacturers typically demanding a minimum purity of 99.5%. The 'price of Sodium Tetraborate' can vary, but its cost-effectiveness as an ingredient often makes it an attractive option for formulators.

When formulating with Sodium Tetraborate, it's important to consider concentration levels and regulatory guidelines. While it offers several benefits, its use in cosmetics is regulated to ensure consumer safety. However, when used appropriately, it remains a valuable tool for creating stable, effective, and aesthetically pleasing personal care products. Its continued presence in the industry speaks to its efficacy as a functional ingredient.

In conclusion, Sodium Tetraborate plays a subtle yet significant role in the cosmetics and personal care industry. From stabilizing emulsions to adjusting pH, this versatile boron compound contributes to the quality and performance of many products we use daily. Its application in this sector underscores the diverse utility of this fundamental chemical.