Hypoallergenic

"Hypoallergenic" is not a regulated term in the U.S., so most brands use it loosely. PopsyKosy backs the claim with a third-party Repeat Insult Patch Test (RIPT) — a 21-day exposure study on volunteer subjects under occlusive patches. No erythema, edema, or sensitisation responses observed.

This matters for the ~20% of children with sensitive skin, eczema, or contact dermatitis tendencies.

Why this term matters at PopsyKosy

This safety-adjacent terminology is part of the foundation we built PopsyKosy on. Every PopsyKosy mat is engineered to USP Class VI biocompatibility (the testing tier used for medical-device components polymer chemistry) plus OEKO-TEX Standard 100 Class I certification (the strictest textile-chemistry tier, originally written for infant skin contact). These two standards combined define the safety bar most playmat brands do not meet.

The mat is designed in Los Angeles, precision-manufactured in Taichung, Taiwan — not in China, not in mixed-ownership facilities. Each pattern is single-density-molded tile EVA (no tile seams to peel, no foam delamination, no adhesive layers to off-gas). The 0.5″ and 1″ thickness options both meet ASTM F1292 fall-protection thresholds. Independent COA documents are published in full on our Certifications page.

The PopsyKosy Founder Story covers why Grace Lin set out in 2021 to engineer a play mat with no safety compromises. The full 50-term safety glossary covers every adjacent concept in detail.