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This analysis kit contains a silicone wristband that must be worn continuously for 7 days.

With its exceptional absorbent properties, silicone is a particularly useful material for measuring environmental pollution. When worn as a wristband for a week, it accumulates the pollutants to which the body is exposed. Contrary to popular belief, silicone is not made of plastic or hydrocarbons, but of silicon, an element found in nature.

Laboratory analysis of the wristband identifies the pollutants to which you are exposed and determines the level of pollution. The results are compared to human exposure statistics established by Kudzu Science.

The scale 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.

Would you like to know your level of 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 reprotoxic. Chronic exposure can have consequences for your health, which is why it’s important to know your level of exposure.

Would you like to measure your exposure to pesticides? Check out our Pesticide Wristband Kit. We also offer an Endocrine Disruptors Wristband Pack, whichsimultaneously measuresplasticizers and pesticides.

You can also measure your exposure to plasticizers in your hair using our Plastic Pollution Hair Kitand in the dust in your home with our Plastic Pollution Dust Kit.

The analysis of the silicone wristband focuses on two groups of widely used plasticizers.

• Phthalates

  Phthalates are the primary plasticizers used. 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 in your testing kit:

• Asilicone wristband;
• Detailed instructions to guide you step by step through the process;
• An aluminum case fortransporting your wristband;
• A prepaid return envelope for 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;
• A detailed and interpreted analysis report.

This kit is the easiest to use: simply unpack the bracelet, wear it continuously for 7 days, and return it to us (after making sure to pack it properly).

Instructions for Use: Wristband Kit

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 lab. This timeframe 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)