OEKO-TEX vs bluesign vs GOTS: Which Certifications Actually Apply to Cashmere?

Textile certification is a genuinely confusing field, and confusion is commercially useful to anyone selling things. Logos get displayed loosely, standards get described as covering more than they do, and shoppers are left assuming a badge means "good" in some general sense.

It doesn't. Each of these standards answers a different question, and for cashmere specifically, one of them doesn't apply to the fibre at all.

Let's sort it out.

The one thing to understand first

Certifications fall into two fundamentally different types, and mixing them up is the source of most of the confusion.

Output testing takes the finished product to a laboratory and measures what is in it. It answers: is this specific thing safe?

Input and process management audits the chemicals, facilities and procedures used to make the product. It answers: was this made responsibly?

There is also a third kind, easily confused with both: authenticity and origin marks, which verify that a material is what it claims to be. Those answer neither of the questions above, and we come back to that below because it matters for cashmere specifically.

None is superior. They answer different questions and a brand can hold several. But they are not interchangeable, and a standard designed for one cannot substitute for another.

OEKO-TEX STANDARD 100 — output testing

What it is: laboratory testing of the finished textile against defined limits for harmful substances, covering every component including thread, dye and trims.

What it tests: azo dyes that can release carcinogenic aromatic amines, formaldehyde, extractable heavy metals, pesticide residues, chlorinated phenols, phthalates, pH, and colourfastness to perspiration and rubbing. Limits tighten with skin contact — Product Class I is for babies and toddlers, Class II for prolonged direct skin contact, which is the relevant tier for knitwear.

Applies to cashmere: Yes, fully. Cashmere yarn and finished cashmere garments are both certifiable.

What it doesn't cover: fibre origin, farming, animal welfare, labour, carbon, water, organic or recycled content.

Validity: twelve months, renewable, publicly verifiable via a certificate number on OEKO-TEX's Label Check tool. We have written a fuller guide to what OEKO-TEX STANDARD 100 tests and what it doesn't.

Verdict for cashmere: this is the relevant chemical-safety credential. If you want to know what is in the garment, this is the standard that answers it.

bluesign — input and process management, and it excludes natural fibres

This is where most published comparisons go wrong, so it is worth being precise.

What it is: a system that manages chemical inputs and audits wet-processing facilities. Rather than testing the output, it controls what goes in — screening chemical formulations and assessing the mills and dye houses that use them.

Applies to cashmere: not to the fibre. Purely natural fibres — cotton, linen, wool and silk — fall outside the bluesign criteria. Responsibility for those raw materials sits with the textile manufacturer, not the standard.

That is a specific, documented exclusion, and it means the phrase "bluesign certified cashmere", used as a claim about the fibre, misdescribes the standard. What bluesign can legitimately govern in a cashmere supply chain is the chemistry applied to it — the dyes, auxiliaries and wet-processing steps.

Structural reality: bluesign is built around System Partnership, with an annual fee and on-site facility assessment. For a finished garment to carry the consumer-facing mark, it must come from a System Partner and consist of at least 90% approved fabrics plus a minimum share of approved accessories. This is a system designed for large brands and mills with mapped multi-tier supply chains — and its natural home is chemical-intensive synthetic and outdoor performance textiles, where durable water repellents and technical finishes create the problems it was built to solve.

A small natural-fibre knitwear brand can realistically source bluesign-approved materials. Becoming a System Partner is a different proposition entirely.

Note: bluesign is transitioning its labelling from bluesign APPROVED and bluesign PRODUCT to a unified mark called bluepass through 2026, driven partly by EU rules requiring sustainability claims to be substantiated with accessible evidence. The underlying criteria are unchanged.

Verdict for cashmere: relevant to processing chemistry, not to the fibre. Treat any fibre-level bluesign claim with scepticism.

GOTS — organic fibre plus processing

What it is: the Global Organic Textile Standard, covering organic fibre origin together with processing, chemical and social criteria along the whole chain.

Applies to cashmere: technically yes — GOTS covers animal fibres including wool, cashmere, mohair, alpaca and silk. Practically, rarely.

The reason is the requirement. GOTS does not certify organic farming itself; it requires that fibres already be certified organic under a recognised farming standard. So the goats must be under certified organic livestock management, and then every subsequent stage — scouring, spinning, knitting, dyeing — must be separately GOTS-certified.

Labelling thresholds: 70% certified organic fibre for "made with organic materials", 95% for "organic".

Very little of the world's cashmere meets this. Where you see GOTS on cashmere it is genuine and unusual.

Verdict for cashmere: real but rare. Absence of GOTS on a cashmere garment is normal and not a red flag.

The animal and land standards

None of the above says anything about goats or grassland. Different standards handle that.

The Good Cashmere Standard (GCS) certifies cashmere goat welfare at farm level with chain of custody through processing. Centred on the major producing regions.

The Sustainable Fibre Alliance (SFA) covers herding practice, grassland management and animal welfare, with chain-of-custody requirements for products carrying the claim.

The Responsible Wool Standard (RWS) is the equivalent for sheep wool — it does not cover cashmere goats.

All three are supply-side programmes centred on China and Mongolia, which together account for over 90% of world raw cashmere. They certify herders and processors rather than downstream brands, which makes them largely inaccessible to small manufacturers sourcing outside those systems.

Chyangra Pashmina — Nepal's collective mark

Worth knowing about if you are buying Himalayan cashmere, because it is the one credential specific to the region.

Chyangra Pashmina is a collective trademark administered by the Nepal Pashmina Industries Association, registered across a large number of export markets. To carry it, yarn must be tested on an Optical Fibre Diameter Analyser and meet a threshold of 17 microns or finer, with minimum 97% pashmina purity, durable colourfastness, and freedom from harmful azo dyes. Each label carries a hologram with a unique serial number that can be verified.

It is narrower in chemical scope than OEKO-TEX, but it does two things those standards don't: it verifies fibre fineness and purity, and it authenticates origin. For a category where mislabelled viscose is routinely sold as pashmina, that second function matters.

Side by side

	OEKO-TEX 100	bluesign	GOTS	GCS / SFA	Chyangra
Type	Output testing	Input / process	Both	Farm + chain	Fibre + origin
Covers cashmere fibre	Yes	No	Only if organic	Yes	Yes
Harmful substances	Yes	Yes	Yes	No	Azo dyes only
Fibre origin	No	No	Yes	Yes	Yes
Animal welfare	No	No	Yes	Yes	No
Labour	No	Partly	Yes	Partly	No
Carbon / water	No	Yes	Yes	Partly	No
Publicly verifiable	Yes	Yes	Yes	Varies	Yes
Realistic for a small brand	Yes	No	Rarely	No	Yes, if Nepal-based

What to ask a brand

Rather than looking for the most logos, ask three questions:

1. What is the certificate number, and can I verify it? Real certifications have public verification tools. If a brand cannot produce a number, the logo is decoration.
2. What does it actually cover? Which articles, which product class, and is it current? A certificate on one yarn is not a certificate on a whole range.
3. What is the brand claiming that no certification covers? If a page says "sustainably and ethically made" but holds only a chemical-safety certificate, the ethics claim is unevidenced. That is not necessarily dishonest — but it is unverified, and you should know which is which.

The most useful signal is a brand that tells you the limits of its own certifications. Very few do.

Where we stand

Applying our own test to ourselves, since it would be strange not to.

We hold NPIA / Chyangra Pashmina certification. Every piece ships with a unique serial number recorded in the NPIA database, and you can check yours on our certificate verification page. We have written separately about what NPIA certification involves.

Being precise about what that does and does not tell you: it is an authenticity and origin mark. It confirms fibre fineness, purity and traceable Himalayan origin — that what you have is genuine Chyangra cashmere rather than a blend or a substitute sold under the name. That is the third category we mentioned at the top, and in a market where mislabelled viscose is routinely sold as pashmina, it is worth having.

It is not a chemical-safety certification. It does not test the finished garment against limits for restricted substances the way OEKO-TEX STANDARD 100 does, and we would be misrepresenting it if we let it stand in for one.

We do not hold OEKO-TEX STANDARD 100. We think it is the right standard for what we make, and it is on our list. Today we cannot give you an OEKO-TEX certificate number, so we are not going to imply otherwise.

We do not hold bluesign, and we would not claim it if we could. As set out above, its criteria exclude pure natural fibres. A cashmere brand advertising bluesign as a fibre credential either hasn't read the criteria or is hoping you haven't.

We do not hold GOTS. It requires certified organic livestock management from the farm onward, which our supply chain does not have.

We do not hold the Good Cashmere Standard or SFA certification. Both are herder-level programmes centred on China and Mongolia; neither is available to us.

Beyond certification, what we can tell you is what we control: where the fibre comes from, how it is spun and knitted, and what is and isn't done to it in finishing. We set that out in full in our piece on what "natural fibre" does and doesn't guarantee. It is a smaller claim than a wall of badges. It is also one we can stand behind.

Common questions

Which is better, OEKO-TEX or bluesign?
Neither. OEKO-TEX tests the finished product for harmful substances; bluesign manages chemical inputs and production processes. For knowing what is in a garment you are wearing, OEKO-TEX answers the question. For the environmental footprint of manufacturing, bluesign does.

Can cashmere be bluesign certified?
Not the fibre. Pure natural fibres including wool and silk sit outside bluesign's criteria. bluesign can cover the dyes, chemicals and wet processing applied to cashmere, so a fabric can carry approved status based on its processing — but a claim that raw cashmere is bluesign certified misdescribes the standard.

Is GOTS better than OEKO-TEX?
Broader, not better. GOTS covers organic fibre origin, processing and social criteria; OEKO-TEX covers chemical safety in the finished product more comprehensively. GOTS requires certified organic fibre, which excludes almost all cashmere.

Does an authenticity mark like Chyangra mean a garment is chemically safe?
No. Authenticity marks confirm that a material is what it claims to be — fineness, purity, origin. Chemical safety is a separate question answered by finished-product testing. A garment can be genuinely certified authentic and still have untested dye chemistry, and the two should not be conflated.

Do I need a certification at all to buy safely?
It is not the only signal, but it is the only independently verified one. Everything else — "clean", "natural", "non-toxic", "conscious" — is unregulated language a brand chooses for itself.

Why do so many brands display certification logos incorrectly?
Usually confusion rather than deceit, though the effect is the same. Standards are complex, scopes are narrow, and marketing teams are rarely the ones reading the criteria documents. Verification tools exist precisely because of this.

Keep exploring

For a fibre where the chemistry question is simply smaller, our undyed cashmere line never passes through a dye bath at all.