Using just a singlestrand of hair, it is possible to assess youraverage exposure to pollutantsover the 3 months preceding the sample collection. This is because, as hair grows, it is nourished at the root by blood vessels and incorporates the pollutants to which the body is exposed. Since the rate of hair growth is known (approximately 1 cm per month), analyzing the first 3 centimeters of hair that have been cut is sufficient to determine quarterly exposure levels.

The extent of plastic pollution is now widely recognized and frequently covered in the media. One of the issues with this pollution concerns the additives used to meet the needs of manufacturers and consumers. These additives are used to modify mechanical properties, particularly to make plastics more flexible and durable.

Ubiquitous in our environment, plastic additives (plasticizers) fall into several chemical families, the most common of which are phthalates and bisphenols. Since they are not chemically bonded to the polymer, they can easily leach into the environment and into materials that come into contact with the plastic. The degradation of plastic accelerates this process (heat, solar radiation, abrasion).

Exposure to these substances occurs primarily through ingestion (water and food that have come into contact with plastic) and through inhalation of airborne dust: these molecules are not very volatile at room temperature and attach themselves to dust particles, the finest of which enter the body through the lungs . Phthalates are the primary organic pollutants in household dust.

These substances are recognized by national (ANSES) and European (ECHA) health authorities as endocrine disruptors, and several are classified as chemicals toxic to reproduction and substances of very high concern (SVHCs).

Endocrine disruptors alter the body’s functioning by affecting the production, transport, and expression of hormones, which act as the body’s chemical messengers. Hormones play a role in cellular function.

Hormones are chemicals present in the body at very low concentrations, and the hormone receptors on cells are highly sensitive. Endocrine disruptors can act at very low doses by mimicking or blocking the action of natural hormones. In practical terms, when it comes to endocrine disruptors, it’s not the dose that makes the poison! Thus, the mere presence of an endocrine disruptor can have an impact on the functioning of the exposed body. Several scientific studies suggest strong links to chronic diseases such as hormone-dependent cancers (breast, ovarian, testicular, and thyroid), precocious puberty, reduced fertility, diabetes, and obesity.

This testing kitmeasures your exposure to 12 plasticizers. The hair sampling device isvery easy to use. Once collected and returned, the hair sample isanalyzed in a laboratory to identify and quantify the pollutantspresent in it. In the absence of guideline values, the results are compared to human exposure statistics established by Kudzu Science.

Do you want to know your chronic exposure to plasticizers? Are you concerned about your children’s exposure?

This kit will allow you to test for 12 plasticizers that may be present in your body.

Plasticizers can cause numerous health problems. Some of them are endocrine disruptors and are suspected of being toxic to reproduction. Chronic exposure can have consequences for your health, which is why it’s important to know your level of exposure.

You can also measure your exposure to plasticizers using our new wristband sampling device:the Plastic Pollution Wristband Kit. Kudzu Science also offers a way to assess contamination in your home with thePlastic Pollution Dust Kit.

Would you like to measure your exposure to pesticides? Check out our Hair Pesticide Kit.

The analysis covers two groups of widely used plasticizers.

• Phthalates

  Phthalates are the most commonly used plasticizers. These chemicals are used to soften or plasticize materials (without phthalates, plastics would be brittle and less durable). They can account for up to 50% of a plastic’s mass and are ubiquitous in our daily lives: clothing, toys, paints, cosmetics, and more.

  The phthalates tested for in this kit are the most commonly used in industry, notably DEHP (di-ethyl-hexyl phthalate), DMP (di-methyl phthalate), and DBP (di-butyl phthalate).

  See the complete list below for all the compounds analyzed.
• Bisphenols

This family of additives is also widely used in the industrial manufacture of plastics (as a monomer in polycarbonate and as an additive in epoxy resins). The following bisphenols are analyzed:

- Bisphenol A (BPA): It is classified by the Member States Committee of the European Chemicals Agency (ECHA) as a substance of very high concern under the REACH Regulation, given its reprotoxic and endocrine-disrupting properties. Food was the primary source of BPA exposure for the general population, mainly through the inner lining of food cans. In France, its use has been banned in baby bottles (since 2010) and all food containers (since 2015). It was also widely used in the printing of receipt paper, but this use has also been banned (since 2020).

- Bisphenol-F (BPF): It has multiple applications in lacquers, varnishes, plastic adhesives, water pipes, dental amalgams, and more. Like BPA, it is banned for use in food containers but continues to be used in thermal printing paper.

- Bisphenol-S (BPS): BPS is the only bisphenol that remains authorized for use in food containers. As a result, its use has skyrocketed since the ban on BPA, even though there is no evidence that it is less toxic than BPA (many studies conclude that it is just as much an endocrine disruptor as BPA).

List of analyzed compounds

Everything is included inyour testing kit:

• Asample collection devicefor short and long hair developed by Kudzu Science;
• Detailed instructionsto guide you step by step through the process;
• Asample collection formto help us interpret your results;
• Aprepaidreturn envelopefor sending your sample to the lab (from mainland France only);
• Analysis of your sampleusing chemical extraction and liquid or gas chromatography coupled with mass spectrometry;
• And adetailed, interpreted analysis report.

Your report will be available for direct download from the“My Kudzu Kit” sectionof our website within 15 business days after your sample is received at the laboratory. This turnaround time is reduced to 5 days if you select the “express” option.

You will receive a comprehensive, personalized, and interpreted analysis report detailing your results, information on the pollutants tested for, and advice on how to limit your exposure to plasticizers. It is designed to allow you to quickly and easily compare your results with those obtained during measurement campaigns conducted by the laboratory.

Example of an interpreted analysis report (excerpt)