Test dossier
In our articles and on our product pages, we regularly mention a certificate or a test report. This dossier lists them: who tested, when, and what the result was. It concerns two things: the origin of the organic cotton, and independent tests on the materials themselves.
1. Origin of the organic cotton
| Certificate | Transaction certificate, Control Union Certifications (Zwolle) |
|---|---|
| Batch | 1,284.80 kg organic cotton, February 2025 |
| Weaving mill | Assessed by Bureau Veritas under the Global Organic Textile Standard (GOTS) |
| Farming standard | USDA National Organic Program (United States) and APEDA National Programme for Organic Production (India) |
2. Test of the silver-thread cotton fabric
| Laboratory | SGS |
|---|---|
| Sample | The silver-thread cotton fabric used in the sheet, fitted sheet, duvet cover and pillowcase |
| Date | September 2025 |
| Report number | SL22502333495502TX |
| Examined | Formaldehyde, azo dyes, twelve heavy metals and colour fastness |
| Result | Nothing detectable above the laboratory's detection limit |
3. REACH screening of the conductive vegan leather
| Laboratory | SGS |
|---|---|
| Sample | The conductive vegan leather used in the sleep mat, desk mat and yoga mat |
| Date | May 2026 |
| Examined | 253 substances from the REACH candidate list (substances of very high concern, SVHC) |
| Result | All examined substances stayed below the European limit of 0.1 percent |
What these results mean
These certificates and reports cover the shipment and material sample for which they were issued; they are not a standing guarantee for every future delivery. They do show that the claims on our product pages aren't made up: an independent laboratory actually measured, with a name, a date and a method attached.
What these tests don't do is say anything about the effect of earthing on your health. For that, we point to the scientific literature in our knowledge base, not to these material tests.
The test dossier as a PDF
The laboratories do not allow their reports to be reproduced or published, so the originals are not shown here. Instead we have compiled a dossier with the composition, all results, the methods and standards, and the report numbers and dates from the laboratories and certification bodies. That makes every figure here verifiable.
If you want a report confirmed, contact the laboratory and give the report number and date. If you would like to see the originals, email info@earthle.nl; we will look at what the laboratories permit.
Read more
The full materials list per product is in what our earthing products are made of.