Why the chemical composition of a baby product deserves your attention
When buying a playmat, a potty trainer, or a baby bath, we often look at the color, the price, and the practicality. Rarely do we check the chemical safety data sheet. Yet, infants spend hours in direct contact with these surfaces. They put everything in their mouths, crawl on mats, and sit in their baths. Their skin is more permeable than an adult's, and their hepatic detoxification system is not yet mature until around two years of age.
This guide is not intended to create anxiety. Its purpose is to provide you with concrete benchmarks to distinguish a chemically safe baby product from one that is not, based on available data for three particularly monitored substances: formamide, BPA, and phthalates.
Formamide: the substance most specific to childcare products
Formamide is a solvent used in the manufacture of EVA (ethylene-vinyl acetate) foams, the most common material for puzzle playmats and children's floor mats. It is classified as a Category 1B reprotoxic substance by the European Union, meaning it is suspected of harming fertility and fetal development.
How formamide ends up in a mat
During the manufacturing of EVA tiles by chemical expansion, formamide is used as an expanding agent. It remains trapped in the foam and can gradually release into the ambient air through off-gassing, especially in the first weeks after opening the packaging, and in poorly ventilated spaces. Studies conducted by RIVM in the Netherlands and VITO in Belgium have measured significant concentrations of formamide at floor level in rooms equipped with these mats.
What to look for on the label
The EN 71-9 standard sets migration limits for toys, but it does not cover all floor products. Explicitly look for the mention 'formamide-free', accompanied by a laboratory test certificate (SGS, Intertek, Bureau Veritas are recognized organizations). An OEKO-TEX STANDARD 100 certification on a textile mat is a relevant indicator, but it does not apply to expanded synthetic foams.
BPA: a widely known substance, but not entirely gone
Bisphenol A (BPA) is a chemical compound used in the manufacture of certain polycarbonate plastics and epoxy resins. It is recognized as an endocrine disruptor: it mimics estrogen and can interfere with the hormonal system even at very low doses. The European Union has classified it as a Substance of Very High Concern (SVHC) under the REACH regulation.
Where BPA can still be found in baby products
Since 2011, BPA has been banned in baby bottles in France and the EU. Since 2013, its use has been prohibited in all food containers intended for children under three years old. However, some products imported from outside the European Union may still contain it. Products purchased on generic marketplaces, without an identifiable European importer, present a higher risk. Always check for the mention 'BPA-free' and the presence of a traceable lot number linked to a European or CE certified manufacturer.
BPA substitutes: better or the same
BPS (bisphenol S) and BPF (bisphenol F), often used as substitutes, are also suspected of endocrine-disrupting activity. A 'BPA-free' product is therefore not necessarily free of all bisphenols. PP (polypropylene, code 5) and PPSU plastics are currently considered the safest alternatives for food-contact products.
Phthalates: ubiquitous plasticizers under surveillance
Phthalates are a family of chemical compounds used to soften PVC. They are found in certain toys, plasticized surfaces, protective edges, and bath accessories. Several phthalates (DEHP, DBP, BBP, DIBP) are classified as reprotoxic and endocrine disruptors by ECHA (European Chemicals Agency).
Current European regulations
The REACH regulation (Annex XVII) prohibits DEHP, DBP, and BBP phthalates at concentrations above 0.1% by weight in toys and childcare articles. DIBP has been subject to the same restrictions since 2015. This regulation applies to products placed on the European market, but its control relies on laboratory tests that not all manufacturers systematically perform.
How to ensure a product respects these limits
REACH compliance is mandatory for any product sold in the EU, but it is not always proven by an independent third-party test. A phthalate test certificate issued by an accredited laboratory (ILAC-MRA mention on the report) is the most reliable proof. Some global certifications such as OEKO-TEX STANDARD 100 include phthalate tests in their protocol, making it a useful indicator for textiles and certain surfaces.
How to read certifications to assess chemical safety
Not all certifications are equal. Here are the most useful benchmarks for parents:
CE marking
The CE marking indicates that the manufacturer declares its product's conformity with applicable European directives. For toys, Directive 2009/48/EC applies. Caution: CE is not a certification issued by an independent body. It can be self-certified by the manufacturer itself. It is necessary but not sufficient.
REACH and SVHCs
The REACH regulation requires manufacturers not to exceed 0.1% of Substances of Very High Concern (SVHC) in their products. The SVHC list is updated twice a year by ECHA. A REACH-compliant product with a laboratory test report is a serious guarantee.
OEKO-TEX STANDARD 100
This certification, issued by independent institutes, tests hundreds of harmful substances on textile materials and certain surfaces. It covers formaldehyde, azo dyes, heavy metals, and phthalates. It is one of the most comprehensive certifications for textile mats and fabric accessories.
To learn more about reading product information, you can consult our guide how to read a baby product technical data sheet. And if you're wondering about the criteria that make a product high-quality beyond chemical safety, our article on evolutionary baby products addresses the question from the perspective of durability and actual use.
Applying these criteria to a concrete purchase
Let's take the example of a playmat. It's one of the products where babies spend the most time in early childhood, often with their mouths on the floor from four to five months of age. The choice of material and chemical certification is therefore particularly important. The Treelys playmat is made of formamide-free XPE foam, with a laboratory test certificate available. XPE (cross-linked polyethylene) does not use formamide-type chemical expanding agents in its manufacturing process, which structurally distinguishes it from chemically expanded EVA.
Regarding EVA mats, the topic of material is detailed in our comparison EVA vs XPE mats: why the material changes everything for baby.
What you can do concretely today
Here are three practical habits to adopt before any baby product purchase:
First, look for a third-party laboratory test certificate (not just a simple manufacturer's declaration) mentioning formamide, phthalates, and BPA. A QR code or a link to this document on the product page is a good sign of transparency.
Second, check the identity of the European importer. A product sold on the French market must mention the name and address of a person responsible for placing it on the market in the EU. The absence of this information is a warning sign.
Third, systematically air new foam or plastic products before first use, for at least 24 to 48 hours in a ventilated room. This is a simple precaution that reduces exposure to residual volatile compounds.
The chemical safety of baby products is not an anxiety-provoking topic: it's a topic of transparency. Good manufacturers document their tests. Good distributors make them accessible. It's up to you to ask for them.
