Over the past few years, PFAS—often called "forever chemicals"—have become the focus of growing public attention. They have been detected in a wide range of everyday products, including some brands of period underwear.
What does that mean for consumers? Could these chemicals be present in products designed for intimate use? And how can you choose menstrual products that prioritize both performance and safety?
What Are PFAS—and Why Are They a Concern?
PFAS (per- and polyfluoroalkyl substances) are a large group of synthetic chemicals that break down very slowly in the environment. Some PFAS can also accumulate in the human body over time.
Because they repel water, oil, and stains, PFAS have been widely used in textiles, cookware, food packaging, and many other consumer products.
Health authorities and organizations, including the European Environment Agency, have raised concerns that exposure to certain PFAS may be associated with health risks, including:
- Liver effects.
- Thyroid disorders.
- Disruption of hormone function.
- Reduced fertility.
- An increased risk of certain cancers.
Although research is ongoing and risks depend on the specific PFAS compound and level of exposure, many experts recommend minimizing unnecessary exposure whenever possible.
What Did the Mamavation Investigation Find?
An independent investigation by Mamavation evaluated more than 50 menstrual products, including period underwear, pads, and tampons.
The investigation reported that PFAS indicators were detected in many of the period underwear products tested, raising concerns about the use of fluorinated chemicals in some menstrual products.
The findings prompted increased public discussion about product transparency, independent testing, and the importance of choosing menstrual products made with consumer safety in mind.
Genial Day Period Underwear Is PFAS-Free
Many PFAS compounds contain a strong carbon-fluorine bond, which is why fluorine screening is commonly used as an initial method for identifying the possible presence of PFAS.
Genial Day Period Underwear has undergone fluorine testing, and no fluorine was detected. Based on this testing, the products are considered free from intentionally added PFAS.
I personally use Genial Day products, as do my daughter, friends, colleagues, and thousands of women around the world. That's why it matters to me that they are not only comfortable and reliable, but also manufactured with safety and quality in mind.
Why Material Safety Matters
When choosing period underwear, comfort, absorbency, and fit are important—but so are the materials used to make the product.
Because period underwear is worn in prolonged contact with sensitive skin, many consumers prefer products that undergo independent safety testing and avoid unnecessary potentially harmful substances.
Genial Day is committed to offering products that prioritize both performance and safety.
- No intentionally added PFAS.
- Hypoallergenic and dermatologically tested materials.
- Designed to provide safe, comfortable protection for girls and women.
How Can You Reduce Your Exposure to PFAS?
- Choose menstrual products from brands that provide transparent information about product testing and material safety.
- Look for companies that openly share information about ingredients, certifications, and independent laboratory testing.
- Be cautious when purchasing products from marketplaces where manufacturing standards and quality controls may be difficult to verify.
- Share reliable information with friends and family so more women can make informed choices about the products they use.
The Bottom Line
Period underwear should provide comfort, confidence, and peace of mind—not unnecessary uncertainty about what it contains.
As awareness of PFAS continues to grow, transparency and independent testing are becoming increasingly important when choosing menstrual products.
At Genial Day, we believe women deserve products that combine comfort, performance, and carefully selected materials they can trust.
Choose products designed with your health and well-being in mind—because your body deserves the very best.
