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| Catalog Number | CI-SC-0110 |
| Product Name | BHT |
| CAS | 128-37-0 |
| Structure |  |
| Description | BHT = butylated hydroxy-toluene (2,6-di-tert-butyl-4-methylphenol). Melting point 70°C (158°F). Purity 99%. |
| Solubility | Insoluble in water,partly soluble in ethyl alcohol, isopropyl alcohol and oils |
| Appearance | Off white to yellowish crystals, characteristic odor |
| Application | For stabilizing all kinds of cosmetics like creams, lotions, shampoos, makeup & sunscreen products. |
| Storage | Store light-protected at a cool and dry place |
| Composition | Butylated hydroxytoluene |
| Features And Benefits | Neutralizes free oxygen radicals and acts as potent antioxidantPrevents auto-oxidation of organic materials (prevents rancidity of fats & oils)Extends shelf-life & stabilizes colorants of cosmetics |
| GMO | GMO-free (does not contain plant-derived components) |
| HS Code | 3201900000 |
| INCI | Butylated hydroxytoluene |
| Manufacture | BHT is produced by the reaction of p-cresol (4-methylphenol) with isobutylene (2-methylpropene) catalyzed by sulfuric acid. |
| Purity Grade | No purity grade applicable |
| Raw Material Source | P-cresol and isobutylene |
| Uses | Add to fat phase, typical usage 0.01-0.1%, best used in combination with EDTA. For external use only. |
BHT (Butylated Hydroxytoluene) is an effective synthetic antioxidant, widely recognized for its role in delaying the rancidity of oils and fats predominantly consisting of polyunsaturated fatty acids. Its oil-soluble, white crystalline structure makes it suitable for food and personal care products, where it operates by scavenging free oxygen radicals to prevent oxidative degradation both within the product and in potential applications on skin cell membranes and DNA. BHT's inclusion in formulations extends the shelf-life of oil-based products by preventing deterioration, maintaining efficacy within the optimal concentration range of 0.02% to 0.1%. It is particularly advantageous in enhancing the shelf-life and olfactory stability of moisturizing oils, perfumes, and flavors upon package opening. Known for its solubility in oils, albeit limited solubility in water, BHT is incorporated into various applications including essential oil soaps, decorative cosmetics, personal care products, and fragrances. Furthermore, when combined with other ingredients like BHA, BHT exhibits synergistic antioxidant effects. Its efficiency is further amplified when used alongside chelating agents such as di- or tetrasodium EDTA, helping to minimize product discoloration.
What is BHT and how does it function in product formulations?
BHT (Butylated Hydroxytoluene) is a synthetic antioxidant primarily used in food and personal care applications to delay rancidity in oils and fats, particularly those containing polyunsaturated fatty acids. It functions by scavenging free oxygen radicals, thus preventing oxidation in products, skin cell membranes, and DNA after application.
In what types of products is BHT commonly used?
BHT is widely used in decorative cosmetics, personal care products, fragrances, and edible oils. It is also utilized in moisturizing liquid oils, perfumes, and flavors to enhance shelf-life and stabilize fragrances after a package is opened.
How does BHT extend the shelf-life of oil-based formulations?
By preventing oxidation and reducing the rate of rancidity, BHT effectively extends the shelf-life of oil-based formulations. It rapidly dissolves in oils, which helps maintain the quality and freshness of products over time.
What is the recommended concentration of BHT in formulations for optimal effectiveness?
The optimal concentration range for BHT in formulations to effectively reduce rancidity and provide antioxidant benefits is between 0.02% to 0.1%.
How does BHT interact with other ingredients in a formulation?
BHT demonstrates an improved antioxidant effect when combined with another ingredient known as BHA, due to synergism and potentiation of action. When used alongside chelating agents like di- or tetrasodium EDTA, BHT can also help prevent products from becoming yellow, enhancing its protective properties.
Can BHT be used in formulations that require water solubility?
BHT has limited solubility in water but dissolves rapidly in oils. Therefore, it is particularly effective in oil-based formulations such as essential oil caring soaps, where its oil-solubility is advantageous.
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