OEKO-TEX Standard 100 meaning on a clothing label, explained simply

Short answer: OEKO-TEX Standard 100 is an independent label showing that a textile has been tested for a list of unwanted substances. Here is a simple explanation of what the label means and what it does not tell you about a garment.

What the label is

OEKO-TEX Standard 100 is an independent testing scheme for textiles. The garment or material is tested by an approved institute for a range of substances that can be unwanted in clothing. If it passes, the label may be used. It is therefore not a mark a maker gives itself, but the result of an external test.

What the label does not say

The label says nothing about fit, durability or where the fabric was made. It also says nothing about the whole brand behind it, only about the tested product or material. This is important to keep apart when you read clothing labels, so you do not read more into it than is there.

Number and institute on the label

On a genuine label there is a number and the name of the test institute that carried out the test. The number can be used to look up the certificate at OEKO-TEX, so you can check for yourself that it is valid. That is the safest way to check, rather than trusting only a logo in an advert.

Product classes

The label has four product classes, depending on how close the textile comes to the skin. The strictest class applies to clothing for the youngest users, while the next applies to clothing with direct skin contact, such as underwear and T-shirts. So read the class on the label and not just the logo.

Where you see the label

The label is often on a small tag in the garment or on the packaging and product description. If you are looking for bamboo clothing for women, look for the label on the tag of the garment you want to buy, or ask the shop before you decide. Only the tag on the product itself is a safe answer.

Sensible use of the label

Use the label as one piece of information among several when choosing clothing. Also look at fit, the composition of the material and the care label. A label can give reassurance, but it does not replace feeling what suits your body and skin. If you are sensitive, talk to your doctor.

Caring for the clothes

The label does not mean you can wash the clothes however you like. Always follow the care label, choose a low temperature and a gentle programme. That applies to basics such as socks for women too, where size and washing decide how long they last. Air drying is gentler on the fabric.

When you want to know more

If you want to know more about composition and care, look at the individual garments, for example bamboo tops for women. There you can compare material, fit and washing. If a product does not give the information, ask for it before you buy. That is a reasonable expectation.

Frequently asked questions

Does the label mean clothing is safe for everyone?

No. The label shows that the product has been tested for a list of substances, but it is no guarantee that everyone tolerates it. If you are sensitive, talk to your doctor.

Can I check whether a label is genuine?

Yes. The number on the label can be looked up at OEKO-TEX, so you can see whether the certificate is valid and what it covers.

Does the label cover the whole brand?

No, it covers only the tested product or material. Another garment from the same brand does not necessarily carry the same label.