Definition
OEKO-TEX Standard 100 — Tests textiles for harmful substances at every production stage.
OEKO-TEX Standard 100 certifies that a textile product (and every component — yarn, button, zipper, lining) has been tested for substances harmful to human health. The criteria include limits on formaldehyde, heavy metals, pesticides, phthalates and azo dyes.
Standard 100 is a safety certification — not an organic, fair-trade or environmental one. For environmental processing standards, look for OEKO-TEX STeP or GOTS.
Tests textiles for harmful substances at every production stage. In practice, the term appears in two very different places: on regulated certification documents, where it has a fixed technical meaning, and in marketing copy, where it is often used loosely to imply a benefit that has never been audited.
Treat OEKO-TEX Standard 100 as a starting question rather than an answer. Ask who defined it, who checks it, and whether the check covers the whole product or a single component. A claim backed by a named standard, a certificate number and an expiry date is worth far more than the same word printed on a box.
On RevWix, every product page separates verified claims from unverified ones, so when you see OEKO-TEX Standard 100 attached to a listing you can trace it back to the certification, the material or the company policy that supports it.
| Signal | Strong claim | Weak claim |
|---|---|---|
| Source | Named standard or accredited certifier | Brand's own website copy with no reference |
| Scope | Stated product, batch or facility | Vague company-wide statement |
| Proof | Certificate or licence number you can look up | A logo image with no ID |
| Date | Issue and expiry dates published | Undated, possibly years old |
| Independence | Third-party audit | Self-declared or paid badge |
Tests textiles for harmful substances at every production stage.
Partly. Some uses are tied to a formal standard with audits and expiry dates; other uses are unregulated marketing language. The difference is whether a named third party verifies it and publishes the result.
No single term guarantees that. It tells you one specific thing was checked. A complete picture needs the material, the certification scope, the labour standard behind it, and the packaging or end-of-life story.
It only contributes to a score when it is backed by a current, third-party audited document. Unverified uses are shown on the page for transparency but carry no scoring weight.