Eco Label Decoder: What ENERGY STAR, FSC, GREENGUARD and OEKO-TEX Actually Certify
- By The Eco Aesthetic Editorial Team
- Posted
An eco label is only as meaningful as the attribute it certifies: ENERGY STAR covers energy efficiency, WaterSense water use, FSC forestry, GREENGUARD low chemical emissions, and OEKO-TEX tested-for-harmful-substances textiles. This decoder lists 10 labels with their issuer, what each certifies and what it does not, plus a link to the criteria the label owner publishes.
Eco label decoder
Pick a product type to see the labels that apply to it. The full list is always on the page, so you can read it without filters. Each label links to the label owner's own criteria. Labels marked as covering many product types appear under every filter.
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ENERGY STAR
- Issuer and kind
- U.S. EPA (administered with industry partners). government program.
- What it certifies
- A government-backed symbol for energy efficiency. Products and buildings that carry it have met EPA efficiency criteria set for that product category. Example: A light bulb must meet the lamp specification (for example, minimum lumens for a stated incandescent wattage, and a minimum lumens per watt).Specification.
- Outside its scope
- Not about materials, chemical emissions, recycled content or where a product was made. It says a product is efficient relative to its category, not that it is the lowest-energy choice you could make.
- Criteria
- EPA: About ENERGY STAR (accessed 2026-11-14)
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WaterSense
- Issuer and kind
- U.S. EPA. government program.
- What it certifies
- Products, new homes and programs that EPA has certified to use at least 20 percent less water, save energy and perform as well as or better than regular models.
- Outside its scope
- Not about materials or chemical content. It covers water efficiency and performance.
- Criteria
- EPA: About WaterSense (accessed 2026-11-14)
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FSC (Forest Stewardship Council): 100%, MIX, RECYCLED
- Issuer and kind
- Forest Stewardship Council. third-party certification.
- What it certifies
- That wood or paper material comes from verified, responsibly managed sources. FSC 100% means all virgin material from FSC-certified forests; FSC MIX combines FSC virgin fibre and/or recycled and controlled material; FSC RECYCLED means 100% recycled fibre.
- Outside its scope
- A forestry and chain-of-custody claim. It does not say a finished piece of furniture is free of adhesives, finishes or emissions, and a MIX label means only part of the material is FSC-certified virgin.
- Criteria
- FSC: What do the FSC labels mean? (accessed 2026-11-14)
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UL GREENGUARD and GREENGUARD Gold
- Issuer and kind
- UL Solutions (third-party certifier). third-party certification.
- What it certifies
- Low chemical emissions from products into indoor air, tested against UL 2818 limits. Gold has lower limits for sensitive groups and limits emissions of more than 360 VOCs and total chemical emissions. Product groups include furniture, flooring, building materials, mattresses and cleaning products.
- Outside its scope
- An emissions test of the finished product. It is not a claim about recycled content, forestry, energy use or the factory's environmental footprint.
- Criteria
- UL Solutions: UL GREENGUARD Certification (accessed 2026-11-14)
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OEKO-TEX STANDARD 100
- Issuer and kind
- OEKO-TEX (third-party certifier). third-party certification.
- What it certifies
- That a textile, from yarn to finished article, has passed tests for harmful substances; the standard states that every thread, button and accessory is tested against a list of over 1,000 substances, with stricter limits for more skin contact.
- Outside its scope
- A tested-for-harmful-substances label. It is not an organic-fibre or fair-labour claim, and it does not describe how the fibre was grown or the factory's wastewater.
- Criteria
- OEKO-TEX: STANDARD 100 (accessed 2026-11-14)
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GOTS (Global Organic Textile Standard)
- Issuer and kind
- Global Standards (standard owner), with audits by approved certification bodies. third-party certification.
- What it certifies
- Textiles made with certified organic fibres, with environmental and social requirements across the processing chain: chemical inputs, wastewater treatment, human rights criteria and traceability, with annual on-site audits.
- Outside its scope
- Starts where organic farming ends and covers processing. It is not a statement about a finished item's durability, or its chemical emissions in your room.
- Criteria
- Global Standards: GOTS (accessed 2026-11-14)
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Cradle to Cradle Certified
- Issuer and kind
- Cradle to Cradle Products Innovation Institute. third-party certification.
- What it certifies
- A multi-attribute standard assessed in five categories: material health, product circularity, clean air and climate protection, water and soil stewardship, and social fairness. It is described as a Type 1 ecolabel verified as conforming to ISO 14024.
- Outside its scope
- It is multi-attribute, so the logo alone does not say which of the five categories supports the claim being made. Look up the product's certificate.
- Criteria
- Cradle to Cradle Products Innovation Institute: The Standard (accessed 2026-11-14)
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Green Seal
- Issuer and kind
- Green Seal (global nonprofit, independent third-party certifier). third-party certification.
- What it certifies
- Independent certification of products and services. For paints, coatings, stains and sealers its GS-11 leadership standard verifies a product as safer for human health and the environment than similar products while delivering performance, covering safer chemicals, sustainable packaging and verified performance and claims (Edition 4.1, issued March 11, 2025). Other certified categories include cleaning, laundry and personal care products.
- Outside its scope
- Criteria differ by standard, so read the standard for the product category. A Green Seal mark on a paint says nothing about, for example, recycled content or energy use.
- Criteria
- Green Seal: GS-11 Paints, Coatings, Stains, and Sealers (and Certification) (accessed 2026-11-14)
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EPA Safer Choice
- Issuer and kind
- U.S. EPA. government program.
- What it certifies
- Products whose every ingredient EPA has reviewed against human health and environmental criteria, which also pass performance, packaging and pH standards, with annual audits. Found on cleaning and other products.
- Outside its scope
- A chemical-ingredient and performance label. It is not a claim about carbon footprint, energy use or recycled content.
- Criteria
- EPA: Learn About the Safer Choice Label (accessed 2026-11-14)
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TSCA Title VI (formaldehyde in composite wood)
- Issuer and kind
- U.S. EPA, under federal law (40 CFR Part 770). legal requirement.
- What it certifies
- Hardwood plywood, medium-density fiberboard and particleboard, and finished goods made with them, sold in the United States must meet formaldehyde emission standards and be labelled TSCA Title VI compliant (since March 22, 2019).
- Outside its scope
- A legal minimum for one chemical in specific composite wood products, not a voluntary green label, and not a statement about other emissions, glues or forestry.
- Criteria
- EPA: Formaldehyde Emission Standards for Composite Wood Products (accessed 2026-11-14)
How to use the decoder
A label answers one question: what did someone test or audit? The decoder separates that from the marketing around it. Read the row for the label on your product, then decide whether that attribute is the one the product's claims rely on. A bedsheet marketed as "eco-friendly" with an OEKO-TEX STANDARD 100 label has passed tests for harmful substances; that is not the same as being organic, which is GOTS territory.
Example: a bamboo sheet set marketed as eco-friendly
Worked example
Given: Product: bamboo-viscose sheet set; On the box: OEKO-TEX STANDARD 100 logo, the word "eco-friendly", a green leaf.
- Find the logo in the decoder:
OEKO-TEX STANDARD 100 = tested for harmful substances (textiles) - Check what is outside its scope:
not organic fibre, not factory wastewater, not fair labour - "Eco-friendly" and the leaf:
no named certifier and no stated basis, so treat as a general claim (FTC Green Guides 260.4, 260.6) - Look for a label that matches the claim:
for organic processing, look for GOTS; ask the seller for the certificate
Answer: The sheets are certified for one thing, tested harmful substances. Whether they are 'eco-friendly' is not shown by anything on the box.
Assumptions and limits
- This is a reading guide, not a ranking. The decoder does not say one label is better than another, and it is not a complete list of labels.
- "Certifies" summarises each owner's own published description as of 2026-11-14. Standards change; follow the link to the owner's criteria before you rely on a detail.
- The "outside its scope" column is our reading of the scope the owner describes, not a statement by the owner.
- A label on a product does not prove the product holds a valid certificate. Use the certifier's own directory or certificate where it offers one.
- TSCA Title VI is included because it appears on furniture labels; it is a legal requirement, not a voluntary seal.
Frequently asked questions
Which eco label is most meaningful?
None is meaningful in general; each is meaningful for the one attribute it tests. ENERGY STAR means a model meets EPA efficiency criteria, WaterSense means water efficiency, FSC means responsibly sourced wood or paper, and GREENGUARD means low chemical emissions. Pick the label that matches the claim you care about, and be cautious when a product shows several unfamiliar seals but no stated basis.
What does FSC certify?
The Forest Stewardship Council labels identify wood or paper material from verified, responsibly managed sources. FSC 100% means all virgin material from FSC-certified forests, FSC MIX combines FSC virgin fibre with recycled or controlled material, and FSC RECYCLED means 100% recycled fibre. It is a sourcing claim, so it says nothing about glues, finishes or emissions in the finished piece.
Is GREENGUARD about VOCs?
Yes. UL GREENGUARD certifies low chemical emissions from products into indoor air, and Gold sets lower limits and limits emissions of more than 360 volatile organic compounds plus total chemical emissions. EPA defines VOCs as gases emitted by certain solids or liquids, including paints, varnishes and many building materials and furnishings. GREENGUARD does not describe forestry, recycled content or energy use.
Is TSCA Title VI a green label?
No. It is a federal requirement. Hardwood plywood, medium-density fiberboard, particleboard and finished goods made from them sold in the United States must meet EPA formaldehyde emission standards and be labelled as TSCA Title VI compliant. That makes it a legal minimum for one chemical in one family of products, not a voluntary mark showing a product is better than others.
How do I verify a green claim?
Find the certifier behind the logo, then check its criteria page and, where it offers one, its certificate or product directory for that exact product. A claim that a product was certified by a third party when it was not is deceptive under the Federal Trade Commission's Green Guides, and a certification does not remove a marketer's duty to substantiate what its claims imply.
What if a seal does not say what it certifies?
Treat it as an unsupported general claim. The FTC Green Guides say a seal that does not convey the basis for the certification likely implies a general environmental benefit, and that marketers should not use seals that do not convey their basis, because such a claim is hard to substantiate. Look for a seal with a named attribute, such as water, energy, emissions or forestry.
Sources
- U.S. EPA: About ENERGY STAR; About WaterSense (energystar.gov) WaterSense: https://www.epa.gov/watersense/about-watersense. Accessed 2026-11-14.
- Forest Stewardship Council: What do the FSC labels mean? (ca.fsc.org) Accessed 2026-11-14.
- UL Solutions: UL GREENGUARD Certification (ul.com) Accessed 2026-11-14.
- Federal Trade Commission: Guides for the Use of Environmental Marketing Claims, 16 CFR Part 260 (sections 260.4 and 260.6) (ecfr.gov) eCFR, up to date as of 2026-11-12. Accessed 2026-11-14.
- U.S. EPA: Volatile Organic Compounds' Impact on Indoor Air Quality (epa.gov) Accessed 2026-11-14.
- Other label owners: OEKO-TEX, Global Standards (GOTS), Cradle to Cradle, Green Seal, EPA Safer Choice, EPA formaldehyde rule (oeko-tex.com) Each linked in the decoder list. Accessed 2026-11-14.