BHT and BHA dosage

The measurement of BHT (butylhydroxytoluene, CAS 128-37-0) and BHA (butylhydroxyanisole, CAS 25013-16-5) is essential analysis for the cosmetics, food, and packaging industries. These two synthetic antioxidants are widely used as additives to prevent fat oxidation and extend product shelf life.

Due to their potential health effects, their use is strictly regulated by regulatory authorities, making their dosage essential to ensure the conformity of formulations and the safety of consumers.

Understanding BHT and BHA

BHT and BHA limiting lipid oxidation and thus preserving the sensory properties and stability of products.

• BHT (butylhydroxytoluene) : mainly used in cosmetics, plastic packaging and some food products.
• BHA (butylhydroxyanisole) : used as a preservative in fatty foods, supplements and some pharmaceutical products.

Although effective, these substances are the subject of debate regarding their toxicological safety. International regulations therefore impose maximum concentration limits that must not be exceeded.

Analytical methods for the determination of BHT and BHA

The analysis of BHT and BHA relies on chromatographic methods adapted to the detection and quantification of these antioxidants in complex matrices.

• GC-FID (gas chromatography with flame ionization detection) : a reliable method for quantifying volatile compounds in fats and formulations.
• GC-MS (gas chromatography coupled with mass spectrometry) : specific identification of antioxidants with high sensitivity.
• HPLC (high-performance liquid chromatography) : used for complex matrices such as cosmetics, packaging and food formulations.

These techniques guarantee precise quantification, in accordance with current standards, and ensure the reproducibility of results.

Sectors covered by BHT and BHA analysis

The measurement of BHT and BHA levels is essential in many sectors:

• Cosmetics industry : control of creams, lotions, lipsticks and skincare products containing synthetic antioxidants.
• Agri-food : analysis of fatty foods (butter, oils, snacks, pastries) to guarantee regulatory compliance.
• Food packaging : verification of the migration of additives from plastics into food.
• Pharmaceuticals and nutraceuticals : quality control of formulations incorporating these additives.

Typically analyzed matrices

BHT and BHA analyses are applicable to a wide range of matrices:

• Cosmetic products (creams, balms, makeup)
• Foods rich in lipids
• Plastic and polymer packaging
• Dietary supplements and pharmaceutical products
• Raw materials and industrial formulations

Regulatory and safety issues

European and international regulations strictly govern the use of BHT and BHA. These substances are listed as authorized additives with specific maximum limits (SML, ppm levels) .

The main issues addressed in this analysis are:

• Health safety : ensuring that regulatory thresholds are not exceeded.
• Legal compliance : meeting the requirements of European regulations (e.g., EC Regulation No. 1333/2008 for food additives, EC Regulation No. 1223/2009 for cosmetics).
• Quality control : ensuring the stability and shelf life of finished products.
• Transparency : strengthening consumer confidence through compliant and safe products.

YesWeLab support for your BHT and BHA analyses

YesWeLab provides access to a network of partner laboratories specializing in physicochemical and chromatographic analyses. Our certified and accredited partners (ISO 17025, COFRAC) apply validated methods to guarantee reliable and recognized results.

Thanks to our digital platform, you benefit from a simplified and secure service:

• Quick online submission of your samples
• Real-time monitoring of your analyses
• Fast and secure delivery of results

Our scientific team advises you on the choice of methods adapted to your matrices and supports you to ensure the conformity of your products.

Related analyses

• Paraben dosage
• Phthalate dosage
• Residual solvent analysis
• Styrene dosage
• Volatile compound analysis
• MOSH and MOAH hydrocarbon analysis