GOTS vs OEKO-TEX vs Conventional: Which Label Should You Trust on Kids' Clothes?
You are standing in front of a rack of children's clothing, or scrolling through a brand's website, and the labels are multiplying. GOTS. OEKO-TEX® Standard 100. OEKO-TEX® MADE IN GREEN. Bluesign. 100% organic cotton. Natural fibres. Eco-conscious. Sustainably made. Free from harmful substances.
Some of these are rigorous, independently verified certifications. Some are looser standards with narrower scope. Some are unregulated marketing phrases that mean precisely nothing and can be placed on any garment by any brand at any time, with no external verification whatsoever.
The difference matters — particularly when the garment in question will be worn next to a baby's skin for twelve hours a day.
This guide cuts through all of it. We will explain what each major certification actually requires, what it does not cover, how to verify it is genuine, and where conventional labelling falls short. By the end, you will be able to read a children's clothing label and know exactly what you are looking at.
Why Labels Matter More for Children Than for Adults
Before comparing the certifications themselves, it is worth being clear about why this question is particularly important for children's clothing.
Children's skin — especially in the first months of life — is thinner and more permeable than adult skin. A newborn's skin barrier is still developing, which means it absorbs substances from its environment at proportionally higher concentrations than adult skin. This includes substances present in clothing: residues from pesticides used in cotton farming, chemicals used in bleaching and dyeing, formaldehyde-based finishes used to make fabrics wrinkle-resistant, heavy metals used as mordants in some dye processes.
The EU and most national regulatory bodies set stricter limits for these substances in children's clothing than in adult clothing, precisely because of this heightened vulnerability. But regulatory minimums are exactly that — minimums. Certification standards go further, and the best of them go much further.
There is also a frequency-of-contact argument. A baby is in contact with fabric for the vast majority of every day: a bodysuit against the skin, a sleeping bag for twelve hours overnight, a knitted layer on top of that. The cumulative exposure through clothing is significantly higher for a baby than for an adult who wears a shirt for eight hours at the office.
This is not alarmism. It is the straightforward reason why the question of what is in your child's clothing is worth asking carefully.
The Certifications: What Each One Actually Means
GOTS — Global Organic Textile Standard
What it is: The most comprehensive certification in organic textile production. GOTS covers the entire supply chain from agricultural production through to the finished garment, including all processing, manufacturing, packaging, labelling, trading, and distribution.
What it requires:
At the agricultural stage, GOTS requires that at least 70% of the fibres in the finished product are certified organic — grown without synthetic pesticides, herbicides, or genetically modified organisms. The premium tier, labelled "organic" on the product, requires 95% or more certified organic fibres.
At the processing stage, GOTS prohibits a detailed list of substances from use in any wet processing step: bleaching, dyeing, printing, finishing. This list runs to hundreds of chemicals, including azo dyes that can break down into carcinogenic aromatic amines, formaldehyde, chlorine bleaches, heavy metals, and many categories of synthetic finishes. Only GOTS-approved substances may be used, and these are assessed for environmental and toxicological impact.
GOTS also includes social criteria: workers throughout the supply chain must be paid fairly, work in safe conditions, and be protected from forced labour and child labour. These standards are based on the core conventions of the International Labour Organisation.
All of this is verified annually by independent third-party auditors. Every company in the supply chain — from the farm to the fabric mill to the finished garment manufacturer — must hold its own valid GOTS certificate. Certificates are publicly searchable at global-standard.org.
What it does not cover: GOTS applies specifically to natural organic fibres. It does not apply to synthetic materials. It also requires a minimum organic fibre threshold, which means a small percentage of non-organic components is permissible.
Verdict for children's clothing: The gold standard. If you are buying a garment that will be next to a baby's skin, GOTS is the most rigorous single certification you can use as a guide.
OEKO-TEX® Standard 100
What it is: A product safety certification that tests the finished textile for the presence of harmful substances. Unlike GOTS, it does not certify the process by which the fabric was made — it tests what is in the finished article.
What it requires:
OEKO-TEX® Standard 100 tests for more than 100 substances across four product classes, with Class I applying to products that come into contact with babies and children under three years old. Class I has the strictest permitted residue limits of any class.
The tested substances include pesticide residues, formaldehyde, certain heavy metals (lead, cadmium, chromium, mercury), allergen-forming dyes, pH value outside the acceptable skin-neutral range, and colour fastness.
Certification is granted annually and is verifiable on the OEKO-TEX® website using the label number on the product.
What it does not cover: OEKO-TEX® Standard 100 does not certify how the fabric was produced — it says nothing about whether organic farming methods were used, what chemicals were used during processing (only that their residues are not present above threshold levels in the final product), or whether workers were treated fairly. A fabric can be OEKO-TEX® Standard 100 certified while being produced using entirely conventional, chemical-intensive methods, as long as the residues in the finished product fall within the permitted limits.
Verdict for children's clothing: A genuine and useful certification, particularly valuable for confiming that the finished product is free from harmful residues. It is not a statement about how the garment was made. Best understood as a complement to GOTS, not a replacement for it.
OEKO-TEX® MADE IN GREEN
What it is: A more recent OEKO-TEX® label that combines OEKO-TEX® Standard 100 product testing with an assessment of the production facilities.
What it requires:
Products must meet OEKO-TEX® Standard 100 testing requirements and must be manufactured in facilities that have been audited for environmentally friendly production processes and socially responsible working conditions.
What it does not cover: It does not require organic fibre sourcing. It also does not coer the entire supply chain to the same depth as GOTS — the facility audit covers processing and manufacturing, but not necessarily agricultural production.
Verdict for children's clothing: A meaningful upgrade on OEKO-TEX® Standard 100 alone, adding some supply chain transparency. Not as comprehensive as GOTS on the farming and chemical processing side.
Bluesign
What it is: A standard focused primarily on chemical safety and resource efficiency in textile processing — aimed particularly at synthetic and performance fabrics.
What it requires:
Bluesign assesses chemical inputs, water use, energy use, and worker safety at manufacturing facilities. It prohibits certain chemical inputs rather than testing for residues in the final product.
What it does not cover: Bluesign does not cover agricultural production. It is more commonly found on synthetic performance fabrics — sportswear, outdoor clothing — than on natural fibre baby and children's clothing.
Verdict for children's clothing: Less directly relevant for natural fibre baby and children's clothing. Worth noting if you are buying synthetic base layers or outdoor pieces for older children.
100% Organic Cotton" (without a certification number)
What it is: A claim, not a certification. The phrase describes the fibre content of the fabric — specifically, that the cotton was grown using certified organic methods. It says nothing about what happened to that cotton after it left the farm.
What it covers:
Organic cotton farming only. The cotton itself was grown without synthetic pesticides and herbicides.
What it does not cover: Absolutely everything that happened after the cotton was harvested — the spinning, the weaving, the bleaching, the dyeing, the finishing, the manufacturing, the labour conditions. A garment can be described as "100% organic cotton" while being dyed with azo dyes, bleached with chlorine compounds, and finished with formaldehyde. The label is accurate, but the picture it paints is incomplete.
How to verify it: You cannot, in any meaningful way, verify the claim itself without a certification number. A brand claiming organic cotton without a GOTS certificate or equivalent has made a claim you cannot check.
Verdict for children's clothing: Better than conventional cotton, assuming the organic farming claim is genuine. Significantly less reassuring than GOTS, which certifies what happened to the cotton after the farm. Treat as a starting point, not an endpoint.
"Natural," "Eco," "Sustainable," "Conscious," "Green"
What these are: Marketing language. None of these terms are defined or regulated in any jurisdiction for textile use. Any brand can apply any of them to any product at any time without meeting any external standard or undergoing any verification.
What they cover:
Nothing verifiable. They express an intention or a positioning — which may or may not correspond to actual practice.
How to verify them: You cannot. That is precisely the problem.
Verdict for children's clothing: Treat these terms as prompts to ask further questions, not as answers. The presence of these words on a garment without an accompanying verifiable certification number should prompt scepticism, not reassurance.
The Comparison at a Glance
Here is a summary of what each label does and does not cover across the dimensions that matter most for children's clothing:
The Best Combination
If you take one thing from this guide, let it be this: GOTS and OEKO-TEX® Standard 100 are not competing certifications. They are complementary ones, and together they form the most rigorous combination available for children's clothing.
GOTS certifies the process — from the seed in the ground to the finished fabric. It guarantees that farming was organic, that no harmful chemicals were used in processing, and that workers were treated fairly.
OEKO-TEX® Standard 100 certifies the product — confirming that the finished fabric, whatever process produced it, does not contain harmful residue levels above the strictest permitted limits for baby and children's clothing.
Together, they close the gap between process and product. A garment with both certifications has been produced cleanly and confirmed clean. That is as thorough a guarantee as currently exists.
For our handmade accessories and deadstock fabric pieces, we apply equivalent safety standards and source only from verified suppliers.
How to Verify Any Certification Before You Buy
The existence of a certification logo on a product page is not, by itself, sufficient. Logos can be reproduced. Claims can be made. Verification is the step that turns a claim into a guarantee.
Here is how to verify each major certification:
GOTS: Go to global-standard.org and search for the brand name. Every GOTS-certified company appears in the public database with their certification scope, the products it covers, and its current validity. If the brand does not appear, or if their certificate is expired, they are not GOTS certified regardless of what their label says.
OEKO-TEX® Standard 100 and MADE IN GREEN: Go to oeko-tex.com and use the label check tool with the 16-digit number that appears on the OEKO-TEX® label. This confirms the certificate is genuine, current, and covers the specific product type.
"Organic cotton" without a certification number: There is no independent verification route available to consumers. You are relying on the brand's word. This is not necessarily dishonest — some small producers genuinely source organic cotton and cannot afford GOTS certification — but it is unverifiable.
Everything else: Ask the brand directly for a certification number and the name of their certifying body. A brand that cannot provide these has made a claim they cannot substantiate.
Frequently Asked Questions
Can a garment be GOTS certified but still contain some conventional fibre?
Yes. The GOTS standard requires a minimum of 70% certified organic fibre for the label to read "made with x% organic [fibre name]." For the premium label to read simply "organic," the minimum is 95%. The remaining percentage can consist of non-organic fibres, though these are still subject to GOTS processing standards. In practice, most GOTS-certified children's garments are 100% organic fibre — the threshold is a floor, not a target.
Is OEKO-TEX® Standard 100 the same as OEKO-TEX® MADE IN GREEN?
No. OEKO-TEX® Standard 100 tests the finished product for harmful substance residues. OEKO-TEX® MADE IN GREEN adds an audit of the manufacturing facility for environmental and social standards. A product carrying MADE IN GREEN automatically meets Standard 100 requirements, but not vice versa.
My baby has sensitive skin. Which certification should I prioritise?
If skin sensitivity is the primary concern, OEKO-TEX® Standard 100 at Product Class I gives you the most direct confirmation that the finished fabric does not contain residues likely to cause irritation. GOTS is the stronger broader guarantee, but OEKO-TEX® specifically tests against the skin-irritation risk factors most relevant to eczema-prone or sensitive skin, including pH level, formaldehyde, and allergen-forming dyes.
Is "certified organic" cotton the same as GOTS organic cotton?
Not necessarily. "Certified organic cotton" typically refers to the fibre being grown under a national organic agriculture standard — such as the EU Organic Regulation or USDA Organic. This covers farming only. GOTS requires certified organic fibre and then extends certification through processing and manufacturing. They are compatible — in fact, GOTS requires that the fibre be certified under a recognised national organic standard — but "certified organic cotton" alone does not imply GOTS certification.
Why do some small brands not carry GOTS certification even if they use organic materials?
GOTS certification carries a real cost — in certification fees, annual auditing, and the administrative burden of ensuring every supplier in the chain also holds certification. For very small producers, this cost can be prohibitive relative to the scale of their production. Some small ethical brands source organic materials and apply equivalent standards without formal certification. In these cases, the appropriate response as a consumer is to ask detailed questions about sourcing, processing, and suppliers — and to judge the answers rather than the absence of a logo.
Labels exist to give you information you cannot gather yourself. The best of them — GOTS and OEKO-TEX® — do exactly that: they represent independent, verified, annually renewed guarantees about what is in your child's clothing and how it was made. The worst of them are noise, designed to create the impression of assurance without the substance.
The difference between the two is a certification number you can look up in thirty seconds. We think that is worth knowing.