This week, the news reminded many parents of something we'd rather not know: clothes sold by major retailers, including infant bodysuits, have been urgently recalled in France due to excessive levels of PFAS, chemical substances that scientists call "forever chemicals."
The issue is this question that has been bothering parents for years and is now resurfacing with particular urgency: what is really in the clothes we put on our babies' skin?
What exactly are PFAS?
PFAS, per- and polyfluoroalkyl substances, are chemical compounds widely used in textiles for their waterproofing and stain-resistant properties. They are typically found in windbreakers, raincoats, and water-repellent suits. Their problem? They do not degrade. Neither in the environment nor in the human body. The National Agency for Health Safety associates them with potentially serious effects: hormonal disruption, effects on fertility, liver and kidney damage, and carcinogenic risk. And children, whose skin is thinner and immune system is still developing, are particularly vulnerable.
This is not a new phenomenon. For years, studies have warned about the presence of phthalates, heavy metals, and formaldehyde in children's clothing, often from low-cost production, but not exclusively so.
A mom's requirement, not a marketer's.
I am a mother of two boys. Before being a designer, I am a mother who looks at labels, who touches materials, who wonders what her children wear against their skin all day, all night.
When I launched Maison Piou Piou, I made a simple decision: I would not offer any fabric that I wouldn't want to put on my own children. Not for marketing. For conviction.
Every material I use — jersey, French terry, loop knit, stretch terry — is personally selected from European suppliers I know. I touch the fabric. I check it. And most importantly, I demand one non-negotiable thing: Oeko-Tex Standard 100 certification.
Oeko-Tex Standard 100: what it means concretely
The Oeko-Tex Standard 100 label is one of the most rigorous textile certifications in the world. It guarantees that every component of the fabric — the fiber, the thread, the dyes, the finishes — has been tested and contains no harmful substances above the authorized thresholds.
Specifically, this means: no PFAS, no phthalates, no heavy metals, no formaldehyde, no carcinogenic azo dyes. Tests are carried out by independent accredited institutes, and certifications are renewed regularly. This is not a commercial promise — it is a scientific testing protocol.
The Oeko-Tex certification even includes a specific class, the most demanding, reserved for items intended for babies and infants. It is this class that I use as a reference for choosing my fabrics.
A few simple habits for better choices
This week's news is not here to cause anxiety. It is here to inform. Here's what I do myself, and what I recommend:
- Look for the Oeko-Tex Standard 100 label on the tag. This logo means that the fabric has been tested by an independent body and does not contain any harmful substances above the authorized thresholds—no PFAS, no phthalates, no heavy metals, no formaldehyde. It's not a marketing promise; it's a scientific protocol.
- Always wash new clothes before the first use. A simple wash removes a large part of manufacturing residues. A quick gesture, regardless of the brand.
- Check the fabric composition. The more natural the material, such as cotton, jersey, French terry, the less chemical treatment it has undergone. Technical finishes (waterproof, stain-resistant, wrinkle-free) are often where undesirable substances hide.
- For items worn directly against the skin, such as pajamas, newborn outfits, and bodysuits, pay particular attention. This is where skin contact is longest and most direct, especially for newborns whose skin absorbs more than an adult's.
- Prioritize traceability. Know where the fabric comes from, who made it, and under what conditions. A small brand that manufactures in France with certified materials can give you precise answers. This is valuable information.
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