SUPCASE · Waterproof Phone & Tech Cases
Samsung Galaxy S23 Ultra SUPCASE Unicorn Beetle Pro Dual Layer Case with Screen Protector | Rugged | TPU
Lower concern. TPU typically PFAS-free, but no brand disclosure.
TPU phone cases have lower inherent PFAS risk compared to coated textiles or water-resistant products. Supcase provides no PFAS claims or testing data. No third-party verification available.
We flunk more products than we pass. This one earned its grade. How we grade
Material
TPU (thermoplastic polyurethane) dual layer with screen protector
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
Category baseline
other is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
The full breakdown
What it's made of and why it matters
This case uses TPU (thermoplastic polyurethane), a synthetic rubber polymer that is inherently stable and does not require PFAS additives for water repellency or durability like some Teflon-family coating coatings do. TPU is flexible, shock-absorbent, and resistant to yellowing over extended use, making it a standard choice for rugged phone cases. The dual-layer design typically combines TPU with a harder polycarbonate or TPE outer shell to distribute impact. Screen protectors are usually tempered glass or polyethylene terephthalate (PET), both chemically inert once cured.
The brand's record and disclosure
Supcase is a large third-party accessory manufacturer with no published safety certifications, material disclosures, or known recalls involving chemical contaminants in their phone cases. The brand has not publicly committed to PFAS elimination or offered third-party testing results. No established safety controversies exist in public records for Supcase phone cases. Lack of transparency is standard in this product category, not a distinguishing risk factor.
How it compares in its category
Rugged TPU phone cases are among the lowest-risk soft protective accessories because TPU does not off-gas volatile organic compounds (VOCs) significantly at room temperature and does not degrade into microplastics under normal phone use. This case is comparable to OtterBox, Spigen, and other TPU-based competitors in chemical stability. Screen protectors integrated into cases are common and pose no additional chemical hazard beyond the case material itself.
If you buy it
Clean the case monthly with mild soap and water to prevent bacterial accumulation in seams and on the screen protector. Avoid prolonged exposure to direct sunlight, which can cause TPU to yellow slightly (cosmetic, not a safety issue). Replace the screen protector if it cracks or develops delamination, as protection will be compromised. If the case shows visible degradation, cracking, or color fading after 2-3 years, consider replacement; this is normal wear, not chemical failure.
Beyond PFAS: other things we checked
Established hazard classes for this product type, assessed from public information. These never change the PFAS grade; a Likely flag caps the Verdict at “Buy with care.”
Volatile organic compound (VOC) off-gassing
TPU emits negligible VOCs at room temperature compared to softer plastics. No reports of odor complaints or chemical off-gassing from Supcase TPU cases in available product reviews or safety literature.
Microplastic shedding during use
Degraded TPU surfaces under extended friction (edge wear, compression in pockets) may shed microparticles; however, contact is with a phone device, not food or skin, so ingestion risk is negligible. This is a minor environmental concern only.
Bacterial colonization and biofilm growth
All TPU cases with textured or recessed grip surfaces can trap moisture and bacteria if not cleaned regularly. This is not chemical toxicity but hygiene risk. Weekly cleaning with soap and water mitigates this.
Adhesive and dye contaminants in seams
No data on heavy metals or toxic dyes in case dyes or bonding adhesives for this brand. Industry standard adhesives are epoxy or polyurethane-based and chemically stable once cured; no skin contact occurs during normal phone case use.
Screen protector delamination and leachable adhesives
Adhesive used to bond the screen protector to TPU may contain silicones or acrylics that could theoretically leach if the protector delaminates; however, liquid contact with a phone screen is rare during normal use, and any leachate would be microscopic.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 72% confidence. It is not a lab result.
No independent PFAS lab test is on record for this exact product. A lab test could move the score in either direction.
The brand has not made a specific, verifiable PFAS-free statement, so part of this score reflects that missing disclosure rather than a confirmed material.
Formulations and coatings change between production runs. Always check the current label before buying.
More waterproof phone & tech cases grades
How we score: every product runs through the same public 0–100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.