Yoloha Yoga Ancestars Original Cork Yoga Mat
Lower concern; natural materials unlikely to contain PFAS.
Yoloha Ancestral cork yoga mats use natural cork and rubber, materials with lower PFAS concern. No brand PFAS claims or third-party testing data available.
We flunk more products than we pass. This one earned its grade. How we grade
Material
Natural cork and natural rubber
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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What Yoloha Yoga Ancestars Original Cork Yoga is made of, ingredients and materials
Yoloha's Ancestors mat uses natural cork (harvested bark of cork oak) bonded to natural rubber as its core materials. Cork is inherently low in processing chemicals and does not require synthetic adhesives or coatings to function. Natural rubber can off-gas volatile organic compounds (VOCs) during manufacturing and early use, but levels in natural rubber products are typically lower than in synthetic alternatives. The absence of polyurethane foams, PVC, or synthetic polymers reduces exposure to flame retardants and phthalates common in conventional yoga mats.
What’s concerning
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Volatile Organic Compound (VOC) off-gassing from natural rubber
Natural rubber mats release low-level VOCs (predominantly limonene and other terpenes) during manufacturing and the first weeks of use. Yoloha does not publish off-gassing test data or ventilation recommendations, so individual sensitivity and room air circulation will affect exposure.
Microparticle shedding from surface wear and delamination
Cork and rubber yoga mats are known to shed fine particles when worn or compressed over time, particularly as the bond weakens. This is not a chemical hazard but a physical integrity issue; inhalation risk is low in indoor use but increases if mat edges fray or peel.
Mold and microbial growth if stored damp
Cork and natural rubber are hygroscopic and susceptible to mold if kept in humid environments or cleaned without thorough drying. Yoloha does not specify moisture barriers or fungicidal treatments, so proper air circulation during storage is user-dependent.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Adhesive composition and leachables from cork-rubber bond
The specific adhesive used to bond cork to rubber is not disclosed publicly. Natural rubber-based adhesives are typical, but without material specifications, potential for heavy metals or volatile components cannot be ruled out based on available information.
Heavy metals
Cork is harvested from tree bark in Portugal, Spain, and North Africa; contamination with pesticides or soil-borne heavy metals is theoretically possible but not documented in consumer cork yoga mat testing. Yoloha does not certify organic sourcing or test for residue levels.
Source, FDA ↗The full breakdown
The brand's record and disclosure
Yoloha does not publish third-party safety certifications (e.g., OEKO-TEX, GreenGuard) or detailed material safety disclosures on this product. The brand emphasizes sustainability and natural sourcing in marketing but does not disclose adhesive type, rubber sourcing origin, or off-gassing testing results. No product recalls, health complaints, or regulatory violations are on record for this mat model. Limited transparency on manufacturing process and chemical inputs prevents independent verification of claims.
How it compares in its category
Natural cork and rubber mats occupy a lower-chemical-risk tier compared to PVC or synthetic rubber mats, which often contain flame retardants and phthalates. They avoid the microplastic shedding and durability concerns of thin synthetic foam alternatives. However, they command a price premium and wear faster than closed-cell synthetic or TPE mats, requiring replacement every 1-2 years of regular use. Certified organic or third-party tested mats from brands like Jade or Manduka offer stronger hazard documentation, making direct comparison limited.
If you buy it
Air out the mat in a well-ventilated space for 24-48 hours after unboxing to reduce initial rubber VOC off-gassing; odor typically fades within a week. Clean regularly with a damp cloth and mild soap; avoid prolonged moisture exposure, which can degrade the rubber-cork bond and promote mold. Do not expose to direct heat, sunlight, or temperatures above 60°C (140°F), as rubber will soften and accelerate degradation. Plan for replacement every 12-24 months depending on use frequency, as delamination and surface wear increase microparticle shedding over time.
What we don’t know
- Basis
- Model estimate, 75% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Yoloha has made none
Formulations change between production runs, so check the current label. How we grade.
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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.