COMPLETE SYSTEM TESTING
Every part of the bottle matters.
A baby bottle is not just one part. It is a complete feeding system.Milk touches more than one surface. That is why Thyseed reviews and tests the full product system, not only the parts that are easiest to test.
Bottle body
Tested for material safety and everyday feeding use, including cleaning and warming routines.
Silicone nipple
Tested for food-contact material safety, softness, feeding performance, and durability.
Valve system
Tested as part of the feeding system, including airflow function and component safety.
Cap, collar, and accessories
Tested for fit, sealing, daily handling, and component-level safety.
Printed markings and surface coating
Included in applicable safety testing because parents rely on these markings during daily feeding.
Food-contact surfaces
Tested against applicable food-contact and children's product safety requirements.
* Standards we test against include CPSIA/CPSC children’s product safety requirements, FDA food-contact material requirements, BPA testing. We maintain relevant third-party documentation and Children’s Product Certificates as required by US regulations.
If you have seen online testing claims
We understand why social media testing claims can feel concerning. Online posts frequently use only consumer-grade screening tools, which are not approved for official regulatory compliance testing and may produce inaccurate or misleading readings. For baby products, Thyseed commits to independent laboratory testing conducted under applicable US safety standards.
INTERNAL STANDARDS
Made for real daily use.
Required testing helps confirm that products meet applicable safety standards. But Thyseed goes one step further, with internal checks that help us evaluate how the bottle performs through everyday use.
That means pulling, biting, washing, warming, cooling, rubbing, and repeated handling: the normal things that happen when parents use a bottle every day.
* Internal checks go beyond required independent laboratory testing. They add another layer of review to help us improve product quality and consistency over time.
TRANSPARENCY
Clear answers. Documented proof.
When parents ask about safety, we believe the answer should be simple: what was tested, who tested it, and what documentation is available.
Thyseed maintains product safety documentation so parents can understand how our bottles are reviewed and verified.
Testing conducted by CPSC-recognized independent laboratories, including CTI and SGS.
Compliance documentation maintained for Thyseed products sold in the US.
Documentation that includes the glass bottle body, printed markings, silicone nipple, valve, cap, collar, and related components.
Testing for applicable categories including BPA, phthalates, food-contact materials, and relevant children's product safety requirements.
FOR PARENTS
Questions worth asking.
Parents ask careful questions because they care. We believe those questions deserve clear, documented answers.
Thyseed bottles are tested by CPSC-recognized independent third-party laboratories, including CTI and SGS. We also maintain product compliance documentation for the baby bottles we sell in the US.
Testing and documentation include the complete bottle system, including the glass bottle body, silicone nipple, printed markings, valve system, cap, collar, and related components.
Yes. The printed markings / surface coating are included in applicable safety testing. In the relevant third-party testing, lead was reported as N.D. / Not Detected in the tested printed markings / surface coating.
We understand why that would raise concern. Handheld or consumer-grade screening devices are not approved for official compliance testing and may produce misleading readings that are not accurate. That is why Thyseed relies on independent laboratory testing conducted under applicable US standards, and why we make relevant safety documentation available to parents who request it.
Thyseed bottles are tested against applicable US children’s product safety and food-contact requirements, including relevant CPSIA/CPSC, FDA food-contact, BPA, and CPC documentation categories.
Yes. Parents who would like to review relevant safety information can contact our team. We can provide the appropriate documentation or a parent-friendly summary of the relevant reports.
Because baby products should be supported by proof, not vague reassurance. Our commitment is simple: to provide parents with clear, documented, and verifiable information about the products they choose for their babies.
Have a safety
question?
Have a safety question?
If you have a question about Thyseed materials, testing, printed markings, or product documentation, our team is here to help.
Contact us to request relevant safety documentation or a parent-friendly summary of our testing information.
Try Thyseed. End the Bottle Battle.
With Thyseed, you’re not just choosing a feeding product—you’re choosing safety and quality at every level. From premium global materials to parent-centered design, every detail follows the highest standards, trusted by families worldwide.
