




FAQ (Frequently Asked Questions)
1. What is the CAS number and INCI name of borax?
The Chemical Abstracts Service (CAS) numbers for borax are 1303-96-4 (decahydrate) and 1330-43-4 (anhydrous). The International Nomenclature of Cosmetic Ingredients (INCI) name for borax is Sodium Borate.
2. What is borax?
Borax is a white or colorless crystalline mineral composed of sodium, boron, oxygen, and water, with the chemical formula Na₂B₄O₇·10H₂O. It is commonly used in various industrial and household applications, including as a buffering agent in cosmetics.
3. What functions does borax serve in personal care products?
In cosmetics and personal care formulations, borax serves multiple functions:
Buffering Agent: Helps maintain and stabilize the pH levels of products.
Emulsifying Agent: Assists in blending oil and water components to form stable emulsions.
Preservative: Provides mild antiseptic properties, contributing to product preservation.
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4. In which personal care products is borax commonly used?
Borax is utilized in a variety of personal care products, including:
Creams and Lotions: Acts as an emulsifier to maintain product consistency.
Shampoos: Serves as a buffering agent to stabilize pH levels.
Mouthwashes: Provides antiseptic properties to enhance oral hygiene.
5. Is borax safe for use in personal care products?
Borax is subject to regulatory guidelines due to concerns over potential reproductive toxicity. Its use in cosmetics is restricted in certain regions, and it is classified as a regulated ingredient. Manufacturers must adhere to specific concentration limits and safety assessments when incorporating borax into personal care products.
6. Are there any precautions to consider when using products containing borax?
Consumers should be aware of the regulatory status of borax in their region and follow usage instructions provided by manufacturers. Individuals with sensitive skin or specific health concerns should consult with a healthcare professional before using products containing borax.