OEKO-TEX Standard 100 is an independent testing and certification system that verifies textiles are free from harmful levels of over 100 substances.
What It Tests For
- Formaldehyde
- Pesticide residues
- Heavy metals (lead, cadmium)
- Phthalates
- Allergenic dyes
- Carcinogenic dyes
- pH levels
- Chlorinated phenols
Certification Classes
Products are tested according to skin contact level:
| Class | Use | Strictest |
|---|---|---|
| Class I | Baby products | Most strict |
| Class II | Skin contact | Very strict |
| Class III | No skin contact | Strict |
| Class IV | Decoration only | Less strict |
Towels typically require Class I or II certification.
What It Doesn't Cover
OEKO-TEX Standard 100 tests the final product for harmful substances. It does NOT certify: - Organic origin - Environmental production - Social conditions
For organic certification, look for GOTS.
Reliability
OEKO-TEX is independent and well-established. The certification is meaningful and requires annual testing.
On Labels
Look for: - OEKO-TEX Standard 100 label - Certificate number - Testing institute