Why the chemical composition of baby products deserves your attention
When choosing a play mat, a bathtub, or a training potty for your child, physical safety naturally comes to mind: rounded edges, stability, sturdy materials. But there's another dimension of safety, less visible yet equally fundamental: the chemical composition of materials. Babies put objects in their mouths, crawl on surfaces, and spend hours in direct contact with textiles and foams. What a product contains is just as important as what it allows them to do.
Three families of substances regularly come up in discussions among informed parents and in consumer association reports: formamide, BPA, and phthalates. This article explains what these terms mean, why they are monitored, and how available market certifications help you concretely identify them.
Formamide: the substance to watch out for in foam mats
What it is and where it is found
Formamide is an organic compound used as a blowing agent during the manufacture of EVA (ethylene-vinyl acetate) foams, the material found in many children's floor mats, play tiles, and underlays. During the manufacturing process, it can remain present in the foam as a residue, then gradually migrate to the product's surface and diffuse into the ambient air.
Why it's a problem
The European Chemicals Agency (ECHA) classifies formamide as a Category 1B reprotoxic substance, meaning it is suspected of impairing fertility and harming the development of unborn children. For young children, whose nervous systems are still developing and whose respiratory tracts are particularly sensitive, prolonged exposure—even at low concentrations—is considered a concern by several European health authorities.
What the regulations say
In Belgium, a maximum threshold of 200 µg/m³ in the air above the product was set as early as 2011. France followed with similar recommendations. However, European regulations do not yet impose a uniform limit value, which leads to significant disparities between products. This is precisely where certifications play a filtering role: a product certified OEKO-TEX STANDARD 100, for example, is tested for the absence of formamide under conditions representative of skin contact.
BPA: a well-documented endocrine disruptor
What is bisphenol A?
Bisphenol A (BPA) is a chemical compound used in the manufacture of certain hard plastics (polycarbonate) and in epoxy resins that line the inside of some containers. It was historically found in baby bottles, training cups, and some rigid plastic childcare accessories.
Why it was banned in childcare products
BPA is an endocrine disruptor: it mimics the action of estrogen in the body and can interfere with the hormonal system, even at very low doses. Epidemiological and toxicological studies have established links between early BPA exposure and effects on neurological development, behavior, and sexual maturation. In France, the ban on BPA in all food containers intended for children has been in effect since 2013, and the European Union has significantly strengthened restrictions since then.
BPA substitutes: continued vigilance is needed
Since the BPA ban, some manufacturers have used bisphenol S (BPS) or bisphenol F (BPF) as substitutes. These compounds present similar concern profiles, even if the available data are still less complete. A product stating 'BPA-free' therefore does not guarantee the absence of bisphenols in general. This is why it is advisable to check the precise nature of the plastic used — polypropylene (PP) and high-density polyethylene (HDPE) are generally considered safer alternatives — and to rely on third-party certifications.
Phthalates: ubiquitous plasticizers to monitor
Their role and presence in products
Phthalates are a family of chemical compounds added to PVC (polyvinyl chloride) to make it flexible and malleable. They are found in many soft plastics: toys, mats, mattress protectors, bath accessories, waterproof clothing. Like BPA, they migrate out of the material over time, especially under the effect of heat, prolonged contact, or friction.
Effects on child health
Several phthalates — notably DEHP, DBP, and BBP — are classified as endocrine disruptors and reprotoxic substances. Studies have shown associations between prenatal and postnatal exposure to phthalates and effects on cognitive development, the male reproductive system, and hormonal regulation. The European Food Safety Authority (EFSA) and ECHA have established very low tolerable daily intake levels for these compounds, highlighting their potential for effect at low levels of cumulative exposure.
What regulations require
The REACH regulation (Registration, Evaluation, Authorisation and Restriction of Chemicals) prohibits the most concerning phthalates in toys and childcare articles intended for children under 3 years old, at concentrations greater than 0.1% by mass. This limit applies to materials likely to be put in the mouth. Products compliant with the REACH regulation therefore offer you a minimum legal guarantee on this point.
How certifications concretely protect you
REACH: the reference regulatory standard
REACH compliance is a legal obligation for any product placed on the European market. It guarantees that more than 200 substances of concern have been evaluated and that prohibited or restricted substances are absent from products. It is not an optional label: it is the regulatory floor below which no legal product can fall. Checking that a product is 'REACH compliant' is therefore the first filter to apply.
OEKO-TEX STANDARD 100: independent tests on every component
OEKO-TEX STANDARD 100 goes beyond regulation. It tests every component of the final product—fibers, dyes, surface treatments, accessories—against a list of more than 100 harmful substances, including formamide, phthalates, heavy metals, carcinogenic azo dyes, and allergenic substances. Tests are carried out by independent and accredited institutes. An OEKO-TEX STANDARD 100 certified product is tested under conditions representative of direct and prolonged skin contact, which corresponds exactly to how a baby uses it.
CE: the European regulatory compliance mark
The CE marking indicates that a product meets the essential safety requirements defined by the applicable European directives (including the Toy Directive 2009/48/EC for products intended for children). It is not a quality label in the strict sense, but a declaration of conformity with European safety standards. Its absence on a childcare product is a warning sign.
How to apply these criteria in your purchasing choices
When faced with a baby product, here is a practical three-step approach. First, identify the materials: polyethylene, polypropylene, and certified cotton are preferable to PVC, unidentified polycarbonate, or EVA foams without treatment indication. Second, check the mentioned certifications and their exact scope: a certification must cover the finished product, not just the raw material. Third, read the technical data sheet: a serious manufacturer indicates the precise composition and obtained certifications, with verifiable certificate numbers.
This process takes a few minutes but profoundly changes the quality of your purchasing decision. It allows you to distinguish a product that meets a minimum legal obligation from a product that has undergone a voluntary and verifiable quality process.
As a concrete example, the Treelys play mat is designed in XPE foam (cross-linked polyethylene) certified OEKO-TEX STANDARD 100 and REACH compliant, two characteristics that directly address the issues of formamide and phthalates described in this article. The choice of XPE rather than standard EVA is precisely explained by the absence of formamide in its manufacturing process.
To go further in your purchasing approach, you can consult our guide on how to recognize a quality baby product and our detailed comparison on the differences between EVA and XPE foam. These resources will give you additional keys to evaluate the products you are considering buying.
In summary: what you need to remember
Formamide, BPA, and phthalates are three families of chemical substances whose presence in baby products is documented and concerning from a health perspective. European regulations govern their use but leave room for interpretation. REACH, OEKO-TEX STANDARD 100 certifications and CE marking are concrete and verifiable benchmarks to guide your choices. Behind every product you place on your living room floor or in your child's hands lies an industrial decision: it is legitimate—and useful—to know what it is based on.
